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File: /home/youpico/www/SalesApp/vendor/google/recaptcha/README.md # reCAPTCHA PHP client library [](https://travis-ci.org/google/recaptcha) [](https://coveralls.io/github/google/recaptcha) [](https://packagist.org/packages/google/recaptcha) [](https://packagist.org/packages/google/recaptcha) reCAPTCHA is a free CAPTCHA service that protects websites from spam and abuse. This is a PHP library that wraps up the server-side verification step required to process responses from the reCAPTCHA service. This client supports both v2 and v3. - reCAPTCHA: https://www.google.com/recaptcha - This repo: https://github.com/google/recaptcha - Hosted demo: https://recaptcha-demo.appspot.com/ - Version: 1.3.1 - License: BSD, see [LICENSE](LICENSE) ## Installation ### Composer (recommended) Use [Composer](https://getcomposer.org) to install this library from Packagist: [`google/recaptcha`](https://packagist.org/packages/google/recaptcha) Run the following command from your project directory to add the dependency: ```sh composer require google/recaptcha "^1.3" ``` Alternatively, add the dependency directly to your `composer.json` file: ```json "require": { "google/recaptcha": "^1.3" } ``` ### Support for earlier versions of PHP The 1.3 release moves to PHP 8 and up. For earlier versions, you will need to stay with the 1.2 releases. ### Direct download Download the [ZIP file](https://github.com/google/recaptcha/archive/master.zip) and extract into your project. An autoloader script is provided in `src/autoload.php` which you can require into your script. For example: ```php require_once '/path/to/recaptcha/src/autoload.php'; $recaptcha = new \ReCaptcha\ReCaptcha($secret); ``` The classes in the project are structured according to the [PSR-4](https://www.php-fig.org/psr/psr-4/) standard, so you can also use your own autoloader or require the needed files directly in your code. ## Usage First obtain the appropriate keys for the type of reCAPTCHA you wish to integrate for v2 at https://www.google.com/recaptcha/admin or v3 at https://g.co/recaptcha/v3. Then follow the [integration guide on the developer site](https://developers.google.com/recaptcha/intro) to add the reCAPTCHA functionality into your frontend. This library comes in when you need to verify the user's response. On the PHP side you need the response from the reCAPTCHA service and secret key from your credentials. Instantiate the `ReCaptcha` class with your secret key, specify any additional validation rules, and then call `verify()` with the reCAPTCHA response (usually in `$_POST['g-recaptcha-response']` or the response from `grecaptcha.execute()` in JS which is in `$gRecaptchaResponse` in the example) and user's IP address. For example: ```php <?php $recaptcha = new \ReCaptcha\ReCaptcha($secret); $resp = $recaptcha->setExpectedHostname('recaptcha-demo.appspot.com') ->verify($gRecaptchaResponse, $remoteIp); if ($resp->isSuccess()) { // Verified! } else { $errors = $resp->getErrorCodes(); } ``` The following methods are available: - `setExpectedHostname($hostname)`: ensures the hostname matches. You must do this if you have disabled "Domain/Package Name Validation" for your credentials. - `setExpectedApkPackageName($apkPackageName)`: if you're verifying a response from an Android app. Again, you must do this if you have disabled "Domain/Package Name Validation" for your credentials. - `setExpectedAction($action)`: ensures the action matches for the v3 API. - `setScoreThreshold($threshold)`: set a score threshold for responses from the v3 API - `setChallengeTimeout($timeoutSeconds)`: set a timeout between the user passing the reCAPTCHA and your server processing it. Each of the `set`\*`()` methods return the `ReCaptcha` instance so you can chain them together. For example: ```php <?php $recaptcha = new \ReCaptcha\ReCaptcha($secret); $resp = $recaptcha->setExpectedHostname('recaptcha-demo.appspot.com') ->setExpectedAction('homepage') ->setScoreThreshold(0.5) ->verify($gRecaptchaResponse, $remoteIp); if ($resp->isSuccess()) { // Verified! } else { $errors = $resp->getErrorCodes(); } ``` You can find the constants for the libraries error codes in the `ReCaptcha` class constants, e.g. `ReCaptcha::E_HOSTNAME_MISMATCH` For more details on usage and structure, see [ARCHITECTURE](ARCHITECTURE.md). ### Examples You can see examples of each reCAPTCHA type in [examples/](examples/). You can run the examples locally by using the Composer script: ```sh composer run-script serve-examples ``` This makes use of the in-built PHP dev server to host the examples at http://localhost:8080/ These are also hosted on Google AppEngine Flexible environment at https://recaptcha-demo.appspot.com/. This is configured by [`app.yaml`](./app.yaml) which you can also use to [deploy to your own AppEngine project](https://cloud.google.com/appengine/docs/flexible/php/download). ## Contributing No one ever has enough engineers, so we're very happy to accept contributions via Pull Requests. For details, see [CONTRIBUTING](CONTRIBUTING.md)
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