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recaptcha-v3-request-scores.php
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<?php
/**
* BSD 3-Clause License
* @copyright (c) 2019, Google Inc.
* @link https://www.google.com/recaptcha
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
require __DIR__ . '/appengine-https.php';
// Initiate the autoloader. The file should be generated by Composer.
// You will provide your own autoloader or require the files directly if you did
// not install via Composer.
require_once __DIR__ . '/../vendor/autoload.php';
// Register API keys at https://www.google.com/recaptcha/admin
$siteKey = '';
$secret = '';
// Copy the config.php.dist file to config.php and update it with your keys to run the examples
if ($siteKey == '' && is_readable(__DIR__ . '/config.php')) {
$config = include __DIR__ . '/config.php';
$siteKey = $config['v3']['site'];
$secret = $config['v3']['secret'];
}
// reCAPTCHA supports 40+ languages listed here: https://developers.google.com/recaptcha/docs/language
$lang = 'en';
// The v3 API lets you provide some context for the check by specifying an action.
// See: https://developers.google.com/recaptcha/docs/v3
$pageAction = 'examples/v3scores';
?>
<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,height=device-height,minimum-scale=1">
<link rel="shortcut icon" href="https://www.gstatic.com/recaptcha/admin/favicon.ico" type="image/x-icon"/>
<link rel="canonical" href="https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php">
<script type="application/ld+json">{ "@context": "http://schema.org", "@type": "WebSite", "name": "reCAPTCHA demo - Request scores", "url": "https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php" }</script>
<meta name="description" content="reCAPTCHA demo - Request scores" />
<meta property="og:url" content="https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php" />
<meta property="og:type" content="website" />
<meta property="og:title" content="reCAPTCHA demo - Request scores" />
<meta property="og:description" content="reCAPTCHA demo - Request scores" />
<link rel="stylesheet" type="text/css" href="/examples.css">
<title>reCAPTCHA demo - Request scores</title>
<header>
<h1>reCAPTCHA demo</h1><h2>Request scores</h2>
<p><a href="/">↩️ Home</a></p>
</header>
<main>
<?php
if ($siteKey === '' || $secret === ''):
?>
<h2>Add your keys</h2>
<p>If you do not have keys already then visit <kbd> <a href = "https://www.google.com/recaptcha/admin">https://www.google.com/recaptcha/admin</a></kbd> to generate them. Edit this file and set the respective keys in <kbd>$siteKey</kbd> and <kbd>$secret</kbd>. Reload the page after this.</p>
<?php
else:
// Add the g-recaptcha tag to the form you want to include the reCAPTCHA element
?>
<p>The reCAPTCHA v3 API provides a confidence score for each request.</p>
<p><strong>NOTE:</strong>This is a sample implementation, the score returned here is not a reflection on your Google account or type of traffic. In production, refer to the distribution of scores shown in <a href="https://www.google.com/recaptcha/admin" target="_blank">your admin interface</a> and adjust your own threshold accordingly. <strong>Do not raise issues regarding the score you see here.</strong></p>
<ol id="recaptcha-steps">
<li class="step0">reCAPTCHA script loading</li>
<li class="step1 hidden"><kbd>grecaptcha.ready()</kbd> fired, calling <pre>grecaptcha.execute('<?php echo $siteKey; ?>', {action: '<?php echo $pageAction; ?>'})'</pre></li>
<li class="step2 hidden">Received token from reCAPTCHA service, sending to our backend with:
<pre class="token">fetch('/recaptcha-v3-verify.php?token=abc123</pre></li>
<li class="step3 hidden">Received response from our backend: <pre class="response">{"json": "from-backend"}</pre></li>
</ol>
<p><a href="/recaptcha-v3-request-scores.php">⤴️ Try again</a></p>
<script src="https://www.google.com/recaptcha/api.js?render=<?php echo $siteKey; ?>"></script>
<script>
const steps = document.getElementById('recaptcha-steps');
grecaptcha.ready(function() {
document.querySelector('.step1').classList.remove('hidden');
grecaptcha.execute('<?php echo $siteKey; ?>', {action: '<?php echo $pageAction; ?>'}).then(function(token) {
document.querySelector('.token').innerHTML = 'fetch(\'/recaptcha-v3-verify.php?action=<?php echo $pageAction; ?>&token=\'' + token;
document.querySelector('.step2').classList.remove('hidden');
fetch('/recaptcha-v3-verify.php?action=<?php echo $pageAction; ?>&token='+token).then(function(response) {
response.json().then(function(data) {
document.querySelector('.response').innerHTML = JSON.stringify(data, null, 2);
document.querySelector('.step3').classList.remove('hidden');
});
});
});
});
</script>
<?php
endif;?>
</main>
<!-- Google Analytics - just ignore this -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-123057962-1"></script>
<script>window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-123057962-1');</script>