149 lines
7.8 KiB
PHP
149 lines
7.8 KiB
PHP
<?php
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/**
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* BSD 3-Clause License
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* @copyright (c) 2019, Google Inc.
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* @link https://www.google.com/recaptcha
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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require __DIR__ . '/appengine-https.php';
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// Initiate the autoloader. The file should be generated by Composer.
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// You will provide your own autoloader or require the files directly if you did
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// not install via Composer.
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require_once __DIR__ . '/../vendor/autoload.php';
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// Register API keys at https://www.google.com/recaptcha/admin
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$siteKey = '';
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$secret = '';
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// Copy the config.php.dist file to config.php and update it with your keys to run the examples
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if ($siteKey == '' && is_readable(__DIR__ . '/config.php')) {
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$config = include __DIR__ . '/config.php';
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$siteKey = $config['v2-standard']['site'];
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$secret = $config['v2-standard']['secret'];
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}
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// reCAPTCHA supports 40+ languages listed here: https://developers.google.com/recaptcha/docs/language
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$lang = 'en';
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?>
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<!DOCTYPE html>
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<html lang="en">
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width,height=device-height,minimum-scale=1">
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<link rel="shortcut icon" href="https://www.gstatic.com/recaptcha/admin/favicon.ico" type="image/x-icon"/>
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<link rel="canonical" href="https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php">
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<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>
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<meta name="description" content="reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render" />
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<meta property="og:url" content="https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php" />
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<meta property="og:type" content="website" />
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<meta property="og:title" content="reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render" />
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<meta property="og:description" content="reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render" />
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<link rel="stylesheet" type="text/css" href="/examples.css">
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<title>reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render</title>
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<header>
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<h1>reCAPTCHA demo</h1><h2>"I'm not a robot" checkbox - Explicit render</h2>
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<p><a href="/">↩️ Home</a></p>
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</header>
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<main>
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<?php
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if ($siteKey === '' || $secret === ''):
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?>
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<h2>Add your keys</h2>
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<p>If you do not have keys already then visit <kbd> <a href = "https://www.google.com/recaptcha/admin">https://www.google.com/recaptcha/admin</a></kbd> to generate them. Edit this file and set the respective keys in the <kbd>config.php</kbd> file or directly to <kbd>$siteKey</kbd> and <kbd>$secret</kbd>. Reload the page after this.</p>
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<?php
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elseif (isset($_POST['g-recaptcha-response'])):
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// The POST data here is unfiltered because this is an example.
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// In production, *always* sanitise and validate your input'
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?>
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<h2><kbd>POST</kbd> data</h2>
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<kbd><pre><?php var_export($_POST);?></pre></kbd>
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<?php
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// If the form submission includes the "g-captcha-response" field
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// Create an instance of the service using your secret
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$recaptcha = new \ReCaptcha\ReCaptcha($secret);
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// If file_get_contents() is locked down on your PHP installation to disallow
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// its use with URLs, then you can use the alternative request method instead.
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// This makes use of fsockopen() instead.
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// $recaptcha = new \ReCaptcha\ReCaptcha($secret, new \ReCaptcha\RequestMethod\SocketPost());
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// Make the call to verify the response and also pass the user's IP address
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$resp = $recaptcha->setExpectedHostname($_SERVER['SERVER_NAME'])
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->verify($_POST['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']);
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if ($resp->isSuccess()):
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// If the response is a success, that's it!
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?>
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<h2>Success!</h2>
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<kbd><pre><?php var_export($resp);?></pre></kbd>
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<p>That's it. Everything is working. Go integrate this into your real project.</p>
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<p><a href="/recaptcha-v2-checkbox-explicit.php">⤴️ Try again</a></p>
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<?php
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else:
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// If it's not successful, then one or more error codes will be returned.
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?>
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<h2>Something went wrong</h2>
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<kbd><pre><?php var_export($resp);?></pre></kbd>
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<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>.
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<p><strong>Note:</strong> Error code <kbd>missing-input-response</kbd> may mean the user just didn't complete the reCAPTCHA.</p>
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<p><a href="/recaptcha-v2-checkbox-explicit.php">⤴️ Try again</a></p>
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<?php
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endif;
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else:
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// Add the g-recaptcha tag to the form you want to include the reCAPTCHA element
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?>
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<p>Complete the reCAPTCHA then submit the form.</p>
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<form action="/recaptcha-v2-checkbox-explicit.php" method="post">
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<fieldset>
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<legend>An example form</legend>
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<label class="form-field">Example input A: <input type="text" name="ex-a" value="foo"></label>
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<label class="form-field">Example input B: <input type="text" name="ex-b" value="bar"></label>
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<!-- Set up a container to render the widget -->
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<div class="g-recaptcha form-field"></div>
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<!-- Disable the button by default, will enable when the widget loads -->
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<button class="form-field" type="submit" disabled>Submit ↦</button>
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</fieldset>
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</form>
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<script type="text/javascript">
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var onloadCallback = function() {
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var captchaContainer = document.querySelector('.g-recaptcha');
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grecaptcha.render(captchaContainer, {
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'sitekey' : '<?php echo $siteKey; ?>'
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});
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document.querySelector('button[type="submit"]').disabled = false;
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};
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</script>
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<script type="text/javascript" src="https://www.google.com/recaptcha/api.js?hl=<?php echo $lang; ?>&onload=onloadCallback&render=explicit" async defer></script>
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<?php
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endif;?>
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</main>
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<!-- Google Analytics - just ignore this -->
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<script async src="https://www.googletagmanager.com/gtag/js?id=UA-123057962-1"></script>
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<script>window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-123057962-1');</script>
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