Question Recaptcha v2 or v3 phplib

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#1
i using acctual the outdated recaptchphplib from 2010 i want to recode it to v2 or v3, i have no clue how to change it...

anyone will help me?

recaptchalib.php

Code:
<?php
/*
 * This is a PHP library that handles calling reCAPTCHA.
 *    - Documentation and latest version
 *          http://recaptcha.net/plugins/php/
 *    - Get a reCAPTCHA API Key
 *          https://www.google.com/recaptcha/admin/create
 *    - Discussion group
 *          http://groups.google.com/group/recaptcha
 *
 * Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
 * AUTHORS:
 *   Mike Crawford
 *   Ben Maurer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

/**
 * The reCAPTCHA server URL's
 */
define("RECAPTCHA_API_SERVER", "https://www.google.com/recaptcha/api.js");
define("RECAPTCHA_API_SECURE_SERVER", "https://www.google.com/recaptcha/api.js");
define("RECAPTCHA_VERIFY_SERVER", "www.google.com");

/**
 * Encodes the given data into a query string format
 * @param $data - array of string elements to be encoded
 * @return string - encoded request
 */
function _recaptcha_qsencode ($data) {
        $req = "";
        foreach ( $data as $key => $value )
                $req .= $key . '=' . urlencode( stripslashes($value) ) . '&';

        // Cut the last '&'
        $req=substr($req,0,strlen($req)-1);
        return $req;
}



/**
 * Submits an HTTP POST to a reCAPTCHA server
 * @param string $host
 * @param string $path
 * @param array $data
 * @param int port
 * @return array response
 */
function _recaptcha_http_post($host, $path, $data, $port = 80) {

        $req = _recaptcha_qsencode ($data);

        $http_request  = "POST $path HTTP/1.0\r\n";
        $http_request .= "Host: $host\r\n";
        $http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
        $http_request .= "Content-Length: " . strlen($req) . "\r\n";
        $http_request .= "User-Agent: reCAPTCHA/PHP\r\n";
        $http_request .= "\r\n";
        $http_request .= $req;

        $response = '';
        if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) {
                die ('Could not open socket');
        }

        fwrite($fs, $http_request);

        while ( !feof($fs) )
                $response .= fgets($fs, 1160); // One TCP-IP packet
        fclose($fs);
        $response = explode("\r\n\r\n", $response, 2);

        return $response;
}



/**
 * Gets the challenge HTML (javascript and non-javascript version).
 * This is called from the browser, and the resulting reCAPTCHA HTML widget
 * is embedded within the HTML form it was called from.
 * @param string $pubkey A public key for reCAPTCHA
 * @param string $error The error given by reCAPTCHA (optional, default is null)
 * @param boolean $use_ssl Should the request be made over ssl? (optional, default is false)

 * @return string - The HTML to be embedded in the user's form.
 */
function recaptcha_get_html ($pubkey, $error = null, $use_ssl = false)
{
    if ($pubkey == null || $pubkey == '') {
        die ("To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>");
    }
    
    if ($use_ssl) {
                $server = RECAPTCHA_API_SECURE_SERVER;
        } else {
                $server = RECAPTCHA_API_SERVER;
        }

        $errorpart = "";
        if ($error) {
           $errorpart = "&amp;error=" . $error;
        }
        return '<script type="text/javascript" src="'. $server . '/challenge?k=' . $pubkey . $errorpart . '"></script>

    <noscript>
          <iframe src="'. $server . '/noscript?k=' . $pubkey . $errorpart . '" height="300" width="500" frameborder="0"></iframe><br/>
          <textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
          <input type="hidden" name="recaptcha_response_field" value="manual_challenge"/>
    </noscript>';
}




/**
 * A ReCaptchaResponse is returned from recaptcha_check_answer()
 */
class ReCaptchaResponse {
        var $is_valid;
        var $error;
}


/**
  * Calls an HTTP POST function to verify if the user's guess was correct
  * @param string $privkey
  * @param string $remoteip
  * @param string $challenge
  * @param string $response
  * @param array $extra_params an array of extra variables to post to the server
  * @return ReCaptchaResponse
  */
function recaptcha_check_answer ($privkey, $remoteip, $challenge, $response, $extra_params = array())
{
    if ($privkey == null || $privkey == '') {
        die ("To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>");
    }

    if ($remoteip == null || $remoteip == '') {
        die ("For security reasons, you must pass the remote ip to reCAPTCHA");
    }

    
    
        //discard spam submissions
        if ($challenge == null || strlen($challenge) == 0 || $response == null || strlen($response) == 0) {
                $recaptcha_response = new ReCaptchaResponse();
                $recaptcha_response->is_valid = false;
                $recaptcha_response->error = 'incorrect-captcha-sol';
                return $recaptcha_response;
        }

        $response = _recaptcha_http_post (RECAPTCHA_VERIFY_SERVER, "/recaptcha/api/verify",
                                          array (
                                                 'privatekey' => $privkey,
                                                 'remoteip' => $remoteip,
                                                 'challenge' => $challenge,
                                                 'response' => $response
                                                 ) + $extra_params
                                          );

        $answers = explode ("\n", $response [1]);
        $recaptcha_response = new ReCaptchaResponse();

        if (trim ($answers [0]) == 'true') {
                $recaptcha_response->is_valid = true;
        }
        else {
                $recaptcha_response->is_valid = false;
                $recaptcha_response->error = $answers [1];
        }
        return $recaptcha_response;

}

/**
 * gets a URL where the user can sign up for reCAPTCHA. If your application
 * has a configuration page where you enter a key, you should provide a link
 * using this function.
 * @param string $domain The domain where the page is hosted
 * @param string $appname The name of your application
 */
function recaptcha_get_signup_url ($domain = null, $appname = null) {
    return "https://www.google.com/recaptcha/admin/create?" .  _recaptcha_qsencode (array ('domains' => $domain, 'app' => $appname));
}

function _recaptcha_aes_pad($val) {
    $block_size = 16;
    $numpad = $block_size - (strlen ($val) % $block_size);
    return str_pad($val, strlen ($val) + $numpad, chr($numpad));
}

/* Mailhide related code */

function _recaptcha_aes_encrypt($val,$ky) {
    if (! function_exists ("mcrypt_encrypt")) {
        die ("To use reCAPTCHA Mailhide, you need to have the mcrypt php module installed.");
    }
    $mode=MCRYPT_MODE_CBC;   
    $enc=MCRYPT_RIJNDAEL_128;
    $val=_recaptcha_aes_pad($val);
    return mcrypt_encrypt($enc, $ky, $val, $mode, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0");
}


function _recaptcha_mailhide_urlbase64 ($x) {
    return strtr(base64_encode ($x), '+/', '-_');
}

/* gets the reCAPTCHA Mailhide url for a given email, public key and private key */
function recaptcha_mailhide_url($pubkey, $privkey, $email) {
    if ($pubkey == '' || $pubkey == null || $privkey == "" || $privkey == null) {
        die ("To use reCAPTCHA Mailhide, you have to sign up for a public and private key, " .
             "you can do so at <a href='http://www.google.com/recaptcha/mailhide/apikey'>http://www.google.com/recaptcha/mailhide/apikey</a>");
    }
    

    $ky = pack('H*', $privkey);
    $cryptmail = _recaptcha_aes_encrypt ($email, $ky);
    
    return "http://www.google.com/recaptcha/mailhide/d?k=" . $pubkey . "&c=" . _recaptcha_mailhide_urlbase64 ($cryptmail);
}

/**
 * gets the parts of the email to expose to the user.
 * eg, given [email protected],com return ["john", "example.com"].
 * the email is then displayed as [email protected]
 */
function _recaptcha_mailhide_email_parts ($email) {
    $arr = preg_split("/@/", $email );

    if (strlen ($arr[0]) <= 4) {
        $arr[0] = substr ($arr[0], 0, 1);
    } else if (strlen ($arr[0]) <= 6) {
        $arr[0] = substr ($arr[0], 0, 3);
    } else {
        $arr[0] = substr ($arr[0], 0, 4);
    }
    return $arr;
}

/**
 * Gets html to display an email address given a public an private key.
 * to get a key, go to:
 *
 * http://www.google.com/recaptcha/mailhide/apikey
 */
function recaptcha_mailhide_html($pubkey, $privkey, $email) {
    $emailparts = _recaptcha_mailhide_email_parts ($email);
    $url = recaptcha_mailhide_url ($pubkey, $privkey, $email);
    
    return htmlentities($emailparts[0]) . "<a href='" . htmlentities ($url) .
        "' onclick=\"window.open('" . htmlentities ($url) . "', '', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=300'); return false;\" title=\"Reveal this e-mail address\">...</a>@" . htmlentities ($emailparts [1]);

}


?>
here the side he will using the recaptcha function

createserver.php

Code:
<html>

<meta http-equiv="content-type" content="text/html;charset=UTF-8" /><head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=Edge">
    <meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
    <title>Create Server</title>
    <link rel="icon" href="favicon.png" type="image/x-icon">
    <link href="https://fonts.googleapis.com/css?family=Roboto:400,700&amp;subset=latin,cyrillic-ext" rel="stylesheet" type="text/css">
    <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet" type="text/css">

    <link href="plugins/bootstrap/css/bootstrap.css" rel="stylesheet">
    <link href="plugins/node-waves/waves.css" rel="stylesheet" />
    <link href="plugins/animate-css/animate.css" rel="stylesheet" />
    <link href="plugins/material-design-preloader/md-preloader.css" rel="stylesheet" />
    <link href="plugins/morrisjs/morris.css" rel="stylesheet" />
    <link href="css/style.css" rel="stylesheet">
    <link href="css/themes/all-themes.css" rel="stylesheet" />
</head>
<body background="bg.png">
<body class="theme-blue">

    <div class="overlay"></div>
    
    
    <nav class="navbar">
        <div class="container-fluid">
            <div class="navbar-header">
                <a href="javascript:void(0);" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false"></a>
                <a href="javascript:void(0);" class="bars"></a>
                <IMG SRC="logo.png" ALT="some text" WIDTH=60 HEIGHT=60>
                <a class="navbar-brand" href="index.php"><font size="5">Free TeaSpeak Server</font></a>
            </div>
            <div class="collapse navbar-collapse" id="navbar-collapse">
                <ul class="nav navbar-nav navbar-right">
      
                </ul>
            </div>
        </div>
    </nav>
    <!-- #Top Bar -->
    <section>
        <!-- Left Sidebar -->
        <aside id="leftsidebar" class="sidebar">
            <!-- Menu -->
            <div class="menu">
                <ul class="list">
                    <li class="headerasd"></li>
                        <a href="index.php">
                            <i class="material-icons">home</i>
                            <span>Home</span>
                        </a>
                    </li>
                   <li>
                    <li class="active">
                        <a href="createserver.php">
                            <i class="material-icons">build</i>
                            <span>Create a Server</span>
                        </a>
                    </li>
                    <li>
                        <a href="servers.php">
                            <i class="material-icons">view_list</i>
                            <span>Serverlist</span>
                        </a>
                    </li>
                    <li>
                        <a href="https://forum.teaspeak.de/">
                            <i class="material-icons">dns</i>
                            <span>Forum</span>
                        </a>
                    </li>
                        <a target="_blank" href="mailto:[email protected]">
                            <i class="material-icons">launch</i>
                            
                            <span>Contact</span>
                        </a>   
                    </li>
                    <li>
                    </li>
                </ul>
            </div>
            <!-- #Menu -->
            <!-- Footer -->
            <div class="legal">
                <div class="copyright">
                    &copy; 2018 <a href="https://forum.teaspeak.de/index.php?members/bios.316/">BIOS</a>.
                </div>
                <div class="version">
                    <b>Created for : </b> Teaspeak.de
                </div>
            </div>
            <!-- #Footer -->
        </aside>
        <!-- #END# Left Sidebar -->
    </section>
    
    <section class="content">
        <div class="container-fluid">
            <div class="block-header">
                <h2></h2>
            </div>
            <div class='alert alert-success'>
                            <strong>Announcement :</strong> Ddos protection added on our servers
                            </div><div class='alert alert-warning'>
                            <strong>Announcement :</strong> All Servers migrated to Version 3.5.0
                            </div>
          <!-- Vertical Layout | With Floating Label -->
            <div class="row clearfix">
                <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
                    <div class="card">
                        <div class="header">
                            <h2>
                                Create server
                                <small>Please fill the boxes correctly!</small>
                            </h2>
                            <ul class="header-dropdown m-r--5">
                                <li class="dropdown">
                                </li>
                            </ul>

                            
                        </div>
                        <div class="body">
<?php
require_once("ts3admin.class.php");
require_once("recaptchalib.php");
$publickey = "6Lex53kUAAAAAG-NBH5zY0UlpO7sM7_cj6ZINNzb";
$privatekey = "6Lex53kUAAAAAHMvOxoxIdBs0dewvFRSd9e3wFkS";

    $serverCount=0;
    $slotCount=0;   
    $tsAdmin = new ts3admin($ts3_ip, $ts3_queryport);
    $tsAdmin->connect();
    $tsAdmin->login($ts3_user, $ts3_pass);
    $result = $tsAdmin->serverList();
    if(!$result['success'])
    {
        echo "An Error Occurred Please contact the administrator: ".$result['errors'][0];
    }
    else
    {
        
        
        
        {
            
            {
                if($server['virtualserver_uptime']>=($ttl*3600) && $server['virtualserver_port']!=$ts3_port) $tsAdmin->serverDelete($server['virtualserver_id']);
                else
                {
                    echo '<tr><td>'.$server['virtualserver_name'].'</td>';
                    echo '<td>'.$server['virtualserver_maxclients'].'</td>';
                    
                    $serverCount++;
                    $slotCount+=$server['virtualserver_maxclients'];
                }
            }
        }
        echo '</table>';
    }
    
    if(isset($_POST['name']) and isset($_POST['slots']))
    {
        if(empty($_POST["recaptcha_challenge_field"]) || empty($_POST["recaptcha_response_field"]))
        {
            echo '<div class="alert alert-danger"><strong>Captcha not solved properly!</strong></div>';
        }
        else
        {
            $resp = recaptcha_check_answer($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]);
            if($resp->is_valid)
            {
                if($_POST['slots']+$slotCount>512 || $serverCount>=10) die('ERROR');
                if($_POST['slots']>32) die('Maximum of 32 Slots');
                $tsAdmin = new ts3admin($ts3_ip, $ts3_queryport);
                $tsAdmin->connect();
                $tsAdmin->login($ts3_user, $ts3_pass);
                $data = array(
                    'virtualserver_name' => $_POST['name'],
                    'virtualserver_maxclients' => $_POST['slots'],
                    'virtualserver_weblist_enabled' => '1',
                    'virtualserver_log_client' => '1',
                    'virtualserver_log_query' => '1',
                    'virtualserver_log_channel' => '1',
                    'virtualserver_log_permission' => '1',
                    'virtualserver_log_server' => '1',
                    'virtualserver_log_filetransfer' => '1',
                    'virtualserver_download_quota' => '-1',
                    'virtualserver_upload_quota' => '-1',
                    'virtualserver_max_download_total_bandwidth' => '-1',
                    'virtualserver_max_upload_total_bandwidth' => '-1',
                    'virtualserver_codec_encryption_mode' => 0,
                );
                $result = $tsAdmin->serverCreate($data);
                if(!$result['success'])
                {
                    echo "An error has occurred: ".$result['errors'][0];
                }
                else
                {
echo "<div class='alert alert-success'>
  <strong>Server Active:</strong> ".$ts3_ip.":".$result['data']['virtualserver_port']."
</div>";
echo "<div class='alert alert-warning'>
  <strong>Your TOKEN!</strong> ".$result['data']['token']."
</div>";
            
echo "<br></pre><a href='ts3server://".$ts3_ip."?port=".$result['data']['virtualserver_port']."'><button type = 'button' class = 'btn btn-primary btn-block btn-success' >Connect as normal user.</button></a>";

                }
            }
            else
            {
echo "<div class='alert alert-danger'><strong>An Error Occurred Please try again later.</strong></div>";
            }
        }
    }
    else
    {
        
        ?>
        <form action="createserver.php" method="post">
<label>Server Name</label><input class="form-control" placeholder="Write Your Server's Name Here ..." type="text" name="name">       

            
            <div class="form-line">
                                        <label>Slot</label><input class="form-control" placeholder="Write the number of your server here ... max 32" type="text" name="slots">       
                                    </div>
            </select><td></tr>
        </table>
        </br>
        <center>
        <?php
            echo recaptcha_get_html($publickey);
        ?>
        <center>
<center>
</center>       
        <br />
        <center><button type="submit" class="btn btn-success">Create Server</button></center>
        </form>
        </center>
    <?php
    }
?>         
                        </div>
                        
                    </div>

                                </center>
                            </form>
                        </div>
                    </div>
                </div>
            </div>
            <!-- Vertical Layout | With Floating Label -->
    </section>
    <!-- Jquery Core Js -->
    <script src="plugins/jquery/jquery.min.js"></script>

    <!-- Bootstrap Core Js -->
    <script src="plugins/bootstrap/js/bootstrap.js"></script>

    <!-- Select Plugin Js -->
    <script src="plugins/bootstrap-select/js/bootstrap-select.js"></script>

    <!-- Slimscroll Plugin Js -->
    <script src="plugins/jquery-slimscroll/jquery.slimscroll.js"></script>

    <!-- Waves Effect Plugin Js -->
    <script src="plugins/node-waves/waves.js"></script>

    <!-- Jquery CountTo Plugin Js -->
    <script src="plugins/jquery-countto/jquery.countTo.js"></script>

    <!-- Morris Plugin Js -->
    <script src="plugins/raphael/raphael.min.js"></script>
    <script src="plugins/morrisjs/morris.js"></script>

    <!-- ChartJs -->
    <script src="plugins/chartjs/Chart.bundle.js"></script>

    <!-- Flot Charts Plugin Js -->
    <script src="plugins/flot-charts/jquery.flot.js"></script>
    <script src="plugins/flot-charts/jquery.flot.resize.js"></script>
    <script src="plugins/flot-charts/jquery.flot.pie.js"></script>
    <script src="plugins/flot-charts/jquery.flot.categories.js"></script>
    <script src="plugins/flot-charts/jquery.flot.time.js"></script>

    <!-- Sparkline Chart Plugin Js -->
    <script src="plugins/jquery-sparkline/jquery.sparkline.js"></script>

    <!-- Custom Js -->
    <script src="js/admin.js"></script>
    <script src="js/pages/index.js"></script>

    <!-- Demo Js -->
    <script src="js/demo.js"></script>
</body>




</html>
 

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