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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['v2-standard']['site'];
- $secret = $config['v2-standard']['secret'];
- }
- // reCAPTCHA supports 40+ languages listed here: https://developers.google.com/recaptcha/docs/language
- $lang = 'en';
- ?>
- <!DOCTYPE html>
- <html lang="en">
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width,height=device-height,minimum-scale=1">
- <link rel="shortcut icon" href="https://www.gstatic.com/recaptcha/admin/favicon.ico" type="image/x-icon"/>
- <link rel="canonical" href="https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php">
- <script type="application/ld+json">{ "@context": "http://schema.org", "@type": "WebSite", "name": "reCAPTCHA demo - \"I'm not a robot\" checkbox - Explicit render", "url": "https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php" }</script>
- <meta name="description" content="reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render" />
- <meta property="og:url" content="https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php" />
- <meta property="og:type" content="website" />
- <meta property="og:title" content="reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render" />
- <meta property="og:description" content="reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render" />
- <link rel="stylesheet" type="text/css" href="/examples.css">
- <title>reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render</title>
- <header>
- <h1>reCAPTCHA demo</h1><h2>"I'm not a robot" checkbox - Explicit render</h2>
- <p><a href="/">↩️ Home</a></p>
- </header>
- <main>
- <?php
- if ($siteKey === '' || $secret === ''):
- ?>
- <h2>Add your keys</h2>
- <p>If you do not have keys already then visit <kbd> <a href = "https://www.google.com/recaptcha/admin">https://www.google.com/recaptcha/admin</a></kbd> to generate them. Edit this file and set the respective keys in the <kbd>config.php</kbd> file or directly to <kbd>$siteKey</kbd> and <kbd>$secret</kbd>. Reload the page after this.</p>
- <?php
- elseif (isset($_POST['g-recaptcha-response'])):
- // The POST data here is unfiltered because this is an example.
- // In production, *always* sanitise and validate your input'
- ?>
- <h2><kbd>POST</kbd> data</h2>
- <kbd><pre><?php var_export($_POST);?></pre></kbd>
- <?php
- // If the form submission includes the "g-captcha-response" field
- // Create an instance of the service using your secret
- $recaptcha = new \ReCaptcha\ReCaptcha($secret);
- // If file_get_contents() is locked down on your PHP installation to disallow
- // its use with URLs, then you can use the alternative request method instead.
- // This makes use of fsockopen() instead.
- // $recaptcha = new \ReCaptcha\ReCaptcha($secret, new \ReCaptcha\RequestMethod\SocketPost());
- // Make the call to verify the response and also pass the user's IP address
- $resp = $recaptcha->setExpectedHostname($_SERVER['SERVER_NAME'])
- ->verify($_POST['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']);
- if ($resp->isSuccess()):
- // If the response is a success, that's it!
- ?>
- <h2>Success!</h2>
- <kbd><pre><?php var_export($resp);?></pre></kbd>
- <p>That's it. Everything is working. Go integrate this into your real project.</p>
- <p><a href="/recaptcha-v2-checkbox-explicit.php">⤴️ Try again</a></p>
- <?php
- else:
- // If it's not successful, then one or more error codes will be returned.
- ?>
- <h2>Something went wrong</h2>
- <kbd><pre><?php var_export($resp);?></pre></kbd>
- <p>Check the error code reference at <kbd><a href="https://developers.google.com/recaptcha/docs/verify#error-code-reference">https://developers.google.com/recaptcha/docs/verify#error-code-reference</a></kbd>.
- <p><strong>Note:</strong> Error code <kbd>missing-input-response</kbd> may mean the user just didn't complete the reCAPTCHA.</p>
- <p><a href="/recaptcha-v2-checkbox-explicit.php">⤴️ Try again</a></p>
- <?php
- endif;
- else:
- // Add the g-recaptcha tag to the form you want to include the reCAPTCHA element
- ?>
- <p>Complete the reCAPTCHA then submit the form.</p>
- <form action="/recaptcha-v2-checkbox-explicit.php" method="post">
- <fieldset>
- <legend>An example form</legend>
- <label class="form-field">Example input A: <input type="text" name="ex-a" value="foo"></label>
- <label class="form-field">Example input B: <input type="text" name="ex-b" value="bar"></label>
- <!-- Set up a container to render the widget -->
- <div class="g-recaptcha form-field"></div>
- <!-- Disable the button by default, will enable when the widget loads -->
- <button class="form-field" type="submit" disabled>Submit ↦</button>
- </fieldset>
- </form>
- <script type="text/javascript">
- var onloadCallback = function() {
- var captchaContainer = document.querySelector('.g-recaptcha');
- grecaptcha.render(captchaContainer, {
- 'sitekey' : '<?php echo $siteKey; ?>'
- });
- document.querySelector('button[type="submit"]').disabled = false;
- };
- </script>
- <script type="text/javascript" src="https://www.google.com/recaptcha/api.js?hl=<?php echo $lang; ?>&onload=onloadCallback&render=explicit" async defer></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>
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