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PK � �\���$ README.mdnu �[��� # 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: 1.3.0 - 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) PK � �\�t� � � composer.jsonnu �[��� { "name": "google/recaptcha", "description": "Client library for reCAPTCHA, a free service that protects websites from spam and abuse.", "type": "library", "keywords": ["recaptcha", "captcha", "spam", "abuse"], "homepage": "https://www.google.com/recaptcha/", "license": "BSD-3-Clause", "support": { "forum": "https://groups.google.com/forum/#!forum/recaptcha", "source": "https://github.com/google/recaptcha" }, "require": { "php": ">=8" }, "require-dev": { "phpunit/phpunit": "^10", "friendsofphp/php-cs-fixer": "^3.14", "php-coveralls/php-coveralls": "^2.5" }, "autoload": { "psr-4": { "ReCaptcha\\": "src/ReCaptcha" } }, "extra": { "branch-alias": { "dev-master": "1.3.x-dev" } }, "scripts": { "lint": "PHP_CS_FIXER_IGNORE_ENV=1 vendor/bin/php-cs-fixer -vvv fix --using-cache=no --dry-run .", "lint-fix": "PHP_CS_FIXER_IGNORE_ENV=1 vendor/bin/php-cs-fixer -vvv fix --using-cache=no .", "test": "XDEBUG_MODE=coverage vendor/bin/phpunit", "serve-examples": "@php -S localhost:8080 -t examples" }, "config": { "process-timeout": 0 } } PK � �\ �9 src/autoload.phpnu �[��� <?php /* An autoloader for ReCaptcha\Foo classes. This should be required() * by the user before attempting to instantiate any of the ReCaptcha * classes. * * 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. */ spl_autoload_register(function ($class) { if (substr($class, 0, 10) !== 'ReCaptcha\\') { /* If the class does not lie under the "ReCaptcha" namespace, * then we can exit immediately. */ return; } /* All of the classes have names like "ReCaptcha\Foo", so we need * to replace the backslashes with frontslashes if we want the * name to map directly to a location in the filesystem. */ $class = str_replace('\\', '/', $class); /* First, check under the current directory. It is important that * we look here first, so that we don't waste time searching for * test classes in the common case. */ $path = dirname(__FILE__).'/'.$class.'.php'; if (is_readable($path)) { require_once $path; return; } /* If we didn't find what we're looking for already, maybe it's * a test class? */ $path = dirname(__FILE__).'/../tests/'.$class.'.php'; if (is_readable($path)) { require_once $path; } }); PK � �\f���� � src/ReCaptcha/Response.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha; /** * The response returned from the service. */ class Response { /** * Success or failure. * @var boolean */ private $success = false; /** * Error code strings. * @var array */ private $errorCodes = array(); /** * The hostname of the site where the reCAPTCHA was solved. * @var string */ private $hostname; /** * Timestamp of the challenge load (ISO format yyyy-MM-dd'T'HH:mm:ssZZ) * @var string */ private $challengeTs; /** * APK package name * @var string */ private $apkPackageName; /** * Score assigned to the request * @var float */ private $score; /** * Action as specified by the page * @var string */ private $action; /** * Build the response from the expected JSON returned by the service. * * @param string $json * @return \ReCaptcha\Response */ public static function fromJson($json) { $responseData = json_decode($json, true); if (!$responseData) { return new Response(false, array(ReCaptcha::E_INVALID_JSON)); } $hostname = isset($responseData['hostname']) ? $responseData['hostname'] : ''; $challengeTs = isset($responseData['challenge_ts']) ? $responseData['challenge_ts'] : ''; $apkPackageName = isset($responseData['apk_package_name']) ? $responseData['apk_package_name'] : ''; $score = isset($responseData['score']) ? floatval($responseData['score']) : null; $action = isset($responseData['action']) ? $responseData['action'] : ''; if (isset($responseData['success']) && $responseData['success'] == true) { return new Response(true, array(), $hostname, $challengeTs, $apkPackageName, $score, $action); } if (isset($responseData['error-codes']) && is_array($responseData['error-codes'])) { return new Response(false, $responseData['error-codes'], $hostname, $challengeTs, $apkPackageName, $score, $action); } return new Response(false, array(ReCaptcha::E_UNKNOWN_ERROR), $hostname, $challengeTs, $apkPackageName, $score, $action); } /** * Constructor. * * @param boolean $success * @param string $hostname * @param string $challengeTs * @param string $apkPackageName * @param float $score * @param string $action * @param array $errorCodes */ public function __construct($success, array $errorCodes = array(), $hostname = '', $challengeTs = '', $apkPackageName = '', $score = null, $action = '') { $this->success = $success; $this->hostname = $hostname; $this->challengeTs = $challengeTs; $this->apkPackageName = $apkPackageName; $this->score = $score; $this->action = $action; $this->errorCodes = $errorCodes; } /** * Is success? * * @return boolean */ public function isSuccess() { return $this->success; } /** * Get error codes. * * @return array */ public function getErrorCodes() { return $this->errorCodes; } /** * Get hostname. * * @return string */ public function getHostname() { return $this->hostname; } /** * Get challenge timestamp * * @return string */ public function getChallengeTs() { return $this->challengeTs; } /** * Get APK package name * * @return string */ public function getApkPackageName() { return $this->apkPackageName; } /** * Get score * * @return float */ public function getScore() { return $this->score; } /** * Get action * * @return string */ public function getAction() { return $this->action; } public function toArray() { return array( 'success' => $this->isSuccess(), 'hostname' => $this->getHostname(), 'challenge_ts' => $this->getChallengeTs(), 'apk_package_name' => $this->getApkPackageName(), 'score' => $this->getScore(), 'action' => $this->getAction(), 'error-codes' => $this->getErrorCodes(), ); } } PK � �\Ͷ8�4 4 $ src/ReCaptcha/RequestMethod/Curl.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha\RequestMethod; /** * Convenience wrapper around the cURL functions to allow mocking. */ class Curl { /** * @see http://php.net/curl_init * @param string $url * @return resource cURL handle */ public function init($url = null) { return curl_init($url); } /** * @see http://php.net/curl_setopt_array * @param resource $ch * @param array $options * @return bool */ public function setoptArray($ch, array $options) { return curl_setopt_array($ch, $options); } /** * @see http://php.net/curl_exec * @param resource $ch * @return mixed */ public function exec($ch) { return curl_exec($ch); } /** * @see http://php.net/curl_close * @param resource $ch */ public function close($ch) { curl_close($ch); } } PK � �\�L��4 4 & src/ReCaptcha/RequestMethod/Socket.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha\RequestMethod; /** * Convenience wrapper around native socket and file functions to allow for * mocking. */ class Socket { private $handle = null; /** * fsockopen * * @see http://php.net/fsockopen * @param string $hostname * @param int $port * @param int $errno * @param string $errstr * @param float $timeout * @return resource */ public function fsockopen($hostname, $port = -1, &$errno = 0, &$errstr = '', $timeout = null) { $this->handle = fsockopen($hostname, $port, $errno, $errstr, (is_null($timeout) ? ini_get("default_socket_timeout") : $timeout)); if ($this->handle != false && $errno === 0 && $errstr === '') { return $this->handle; } return false; } /** * fwrite * * @see http://php.net/fwrite * @param string $string * @param int $length * @return int | bool */ public function fwrite($string, $length = null) { return fwrite($this->handle, $string, (is_null($length) ? strlen($string) : $length)); } /** * fgets * * @see http://php.net/fgets * @param int $length * @return string */ public function fgets($length = null) { return fgets($this->handle, $length); } /** * feof * * @see http://php.net/feof * @return bool */ public function feof() { return feof($this->handle); } /** * fclose * * @see http://php.net/fclose * @return bool */ public function fclose() { return fclose($this->handle); } } PK � �\�-؋� � $ src/ReCaptcha/RequestMethod/Post.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha\RequestMethod; use ReCaptcha\ReCaptcha; use ReCaptcha\RequestMethod; use ReCaptcha\RequestParameters; /** * Sends POST requests to the reCAPTCHA service. */ class Post implements RequestMethod { /** * URL for reCAPTCHA siteverify API * @var string */ private $siteVerifyUrl; /** * Only needed if you want to override the defaults * * @param string $siteVerifyUrl URL for reCAPTCHA siteverify API */ public function __construct($siteVerifyUrl = null) { $this->siteVerifyUrl = (is_null($siteVerifyUrl)) ? ReCaptcha::SITE_VERIFY_URL : $siteVerifyUrl; } /** * Submit the POST request with the specified parameters. * * @param RequestParameters $params Request parameters * @return string Body of the reCAPTCHA response */ public function submit(RequestParameters $params) { $options = array( 'http' => array( 'header' => "Content-type: application/x-www-form-urlencoded\r\n", 'method' => 'POST', 'content' => $params->toQueryString(), // Force the peer to validate (not needed in 5.6.0+, but still works) 'verify_peer' => true, ), ); $context = stream_context_create($options); $response = file_get_contents($this->siteVerifyUrl, false, $context); if ($response !== false) { return $response; } return '{"success": false, "error-codes": ["'.ReCaptcha::E_CONNECTION_FAILED.'"]}'; } } PK � �\���; ; * src/ReCaptcha/RequestMethod/SocketPost.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha\RequestMethod; use ReCaptcha\ReCaptcha; use ReCaptcha\RequestMethod; use ReCaptcha\RequestParameters; /** * Sends a POST request to the reCAPTCHA service, but makes use of fsockopen() * instead of get_file_contents(). This is to account for people who may be on * servers where allow_url_open is disabled. */ class SocketPost implements RequestMethod { /** * Socket to the reCAPTCHA service * @var Socket */ private $socket; private $siteVerifyUrl; /** * Only needed if you want to override the defaults * * @param \ReCaptcha\RequestMethod\Socket $socket optional socket, injectable for testing * @param string $siteVerifyUrl URL for reCAPTCHA siteverify API */ public function __construct(Socket $socket = null, $siteVerifyUrl = null) { $this->socket = (is_null($socket)) ? new Socket() : $socket; $this->siteVerifyUrl = (is_null($siteVerifyUrl)) ? ReCaptcha::SITE_VERIFY_URL : $siteVerifyUrl; } /** * Submit the POST request with the specified parameters. * * @param RequestParameters $params Request parameters * @return string Body of the reCAPTCHA response */ public function submit(RequestParameters $params) { $errno = 0; $errstr = ''; $urlParsed = parse_url($this->siteVerifyUrl); if (false === $this->socket->fsockopen('ssl://' . $urlParsed['host'], 443, $errno, $errstr, 30)) { return '{"success": false, "error-codes": ["'.ReCaptcha::E_CONNECTION_FAILED.'"]}'; } $content = $params->toQueryString(); $request = "POST " . $urlParsed['path'] . " HTTP/1.0\r\n"; $request .= "Host: " . $urlParsed['host'] . "\r\n"; $request .= "Content-Type: application/x-www-form-urlencoded\r\n"; $request .= "Content-length: " . strlen($content) . "\r\n"; $request .= "Connection: close\r\n\r\n"; $request .= $content . "\r\n\r\n"; $this->socket->fwrite($request); $response = ''; while (!$this->socket->feof()) { $response .= $this->socket->fgets(4096); } $this->socket->fclose(); if (0 !== strpos($response, 'HTTP/1.0 200 OK')) { return '{"success": false, "error-codes": ["'.ReCaptcha::E_BAD_RESPONSE.'"]}'; } $parts = preg_split("#\n\s*\n#Uis", $response); return $parts[1]; } } PK � �\�|`� � ( src/ReCaptcha/RequestMethod/CurlPost.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha\RequestMethod; use ReCaptcha\ReCaptcha; use ReCaptcha\RequestMethod; use ReCaptcha\RequestParameters; /** * Sends cURL request to the reCAPTCHA service. * Note: this requires the cURL extension to be enabled in PHP * @see http://php.net/manual/en/book.curl.php */ class CurlPost implements RequestMethod { /** * Curl connection to the reCAPTCHA service * @var Curl */ private $curl; /** * URL for reCAPTCHA siteverify API * @var string */ private $siteVerifyUrl; /** * Only needed if you want to override the defaults * * @param Curl $curl Curl resource * @param string $siteVerifyUrl URL for reCAPTCHA siteverify API */ public function __construct(Curl $curl = null, $siteVerifyUrl = null) { $this->curl = (is_null($curl)) ? new Curl() : $curl; $this->siteVerifyUrl = (is_null($siteVerifyUrl)) ? ReCaptcha::SITE_VERIFY_URL : $siteVerifyUrl; } /** * Submit the cURL request with the specified parameters. * * @param RequestParameters $params Request parameters * @return string Body of the reCAPTCHA response */ public function submit(RequestParameters $params) { $handle = $this->curl->init($this->siteVerifyUrl); $options = array( CURLOPT_POST => true, CURLOPT_POSTFIELDS => $params->toQueryString(), CURLOPT_HTTPHEADER => array( 'Content-Type: application/x-www-form-urlencoded' ), CURLINFO_HEADER_OUT => false, CURLOPT_HEADER => false, CURLOPT_RETURNTRANSFER => true, CURLOPT_SSL_VERIFYPEER => true ); $this->curl->setoptArray($handle, $options); $response = $this->curl->exec($handle); $this->curl->close($handle); if ($response !== false) { return $response; } return '{"success": false, "error-codes": ["'.ReCaptcha::E_CONNECTION_FAILED.'"]}'; } } PK � �\�� Z src/ReCaptcha/RequestMethod.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha; /** * Method used to send the request to the service. */ interface RequestMethod { /** * Submit the request with the specified parameters. * * @param RequestParameters $params Request parameters * @return string Body of the reCAPTCHA response */ public function submit(RequestParameters $params); } PK � �\��� � # src/ReCaptcha/RequestParameters.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha; /** * Stores and formats the parameters for the request to the reCAPTCHA service. */ class RequestParameters { /** * The shared key between your site and reCAPTCHA. * @var string */ private $secret; /** * The user response token provided by reCAPTCHA, verifying the user on your site. * @var string */ private $response; /** * Remote user's IP address. * @var string */ private $remoteIp; /** * Client version. * @var string */ private $version; /** * Initialise parameters. * * @param string $secret Site secret. * @param string $response Value from g-captcha-response form field. * @param string $remoteIp User's IP address. * @param string $version Version of this client library. */ public function __construct($secret, $response, $remoteIp = null, $version = null) { $this->secret = $secret; $this->response = $response; $this->remoteIp = $remoteIp; $this->version = $version; } /** * Array representation. * * @return array Array formatted parameters. */ public function toArray() { $params = array('secret' => $this->secret, 'response' => $this->response); if (!is_null($this->remoteIp)) { $params['remoteip'] = $this->remoteIp; } if (!is_null($this->version)) { $params['version'] = $this->version; } return $params; } /** * Query string representation for HTTP request. * * @return string Query string formatted parameters. */ public function toQueryString() { return http_build_query($this->toArray(), '', '&'); } } PK � �\�K~1�" �" src/ReCaptcha/ReCaptcha.phpnu �[��� <?php /** * This is a PHP library that handles calling reCAPTCHA. * * 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. */ namespace ReCaptcha; /** * reCAPTCHA client. */ class ReCaptcha { /** * Version of this client library. * @const string */ public const VERSION = 'php_1.3.0'; /** * URL for reCAPTCHA siteverify API * @const string */ public const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify'; /** * Invalid JSON received * @const string */ public const E_INVALID_JSON = 'invalid-json'; /** * Could not connect to service * @const string */ public const E_CONNECTION_FAILED = 'connection-failed'; /** * Did not receive a 200 from the service * @const string */ public const E_BAD_RESPONSE = 'bad-response'; /** * Not a success, but no error codes received! * @const string */ public const E_UNKNOWN_ERROR = 'unknown-error'; /** * ReCAPTCHA response not provided * @const string */ public const E_MISSING_INPUT_RESPONSE = 'missing-input-response'; /** * Expected hostname did not match * @const string */ public const E_HOSTNAME_MISMATCH = 'hostname-mismatch'; /** * Expected APK package name did not match * @const string */ public const E_APK_PACKAGE_NAME_MISMATCH = 'apk_package_name-mismatch'; /** * Expected action did not match * @const string */ public const E_ACTION_MISMATCH = 'action-mismatch'; /** * Score threshold not met * @const string */ public const E_SCORE_THRESHOLD_NOT_MET = 'score-threshold-not-met'; /** * Challenge timeout * @const string */ public const E_CHALLENGE_TIMEOUT = 'challenge-timeout'; /** * Shared secret for the site. * @var string */ private $secret; /** * Method used to communicate with service. Defaults to POST request. * @var RequestMethod */ private $requestMethod; private $hostname; private $apkPackageName; private $action; private $threshold; private $timeoutSeconds; /** * Create a configured instance to use the reCAPTCHA service. * * @param string $secret The shared key between your site and reCAPTCHA. * @param RequestMethod $requestMethod method used to send the request. Defaults to POST. * @throws \RuntimeException if $secret is invalid */ public function __construct($secret, RequestMethod $requestMethod = null) { if (empty($secret)) { throw new \RuntimeException('No secret provided'); } if (!is_string($secret)) { throw new \RuntimeException('The provided secret must be a string'); } $this->secret = $secret; $this->requestMethod = (is_null($requestMethod)) ? new RequestMethod\Post() : $requestMethod; } /** * Calls the reCAPTCHA siteverify API to verify whether the user passes * CAPTCHA test and additionally runs any specified additional checks * * @param string $response The user response token provided by reCAPTCHA, verifying the user on your site. * @param string $remoteIp The end user's IP address. * @return Response Response from the service. */ public function verify($response, $remoteIp = null) { // Discard empty solution submissions if (empty($response)) { $recaptchaResponse = new Response(false, array(self::E_MISSING_INPUT_RESPONSE)); return $recaptchaResponse; } $params = new RequestParameters($this->secret, $response, $remoteIp, self::VERSION); $rawResponse = $this->requestMethod->submit($params); $initialResponse = Response::fromJson($rawResponse); $validationErrors = array(); if (isset($this->hostname) && strcasecmp($this->hostname, $initialResponse->getHostname()) !== 0) { $validationErrors[] = self::E_HOSTNAME_MISMATCH; } if (isset($this->apkPackageName) && strcasecmp($this->apkPackageName, $initialResponse->getApkPackageName()) !== 0) { $validationErrors[] = self::E_APK_PACKAGE_NAME_MISMATCH; } if (isset($this->action) && strcasecmp($this->action, $initialResponse->getAction()) !== 0) { $validationErrors[] = self::E_ACTION_MISMATCH; } if (isset($this->threshold) && $this->threshold > $initialResponse->getScore()) { $validationErrors[] = self::E_SCORE_THRESHOLD_NOT_MET; } if (isset($this->timeoutSeconds)) { $challengeTs = strtotime($initialResponse->getChallengeTs()); if ($challengeTs > 0 && time() - $challengeTs > $this->timeoutSeconds) { $validationErrors[] = self::E_CHALLENGE_TIMEOUT; } } if (empty($validationErrors)) { return $initialResponse; } return new Response( false, array_merge($initialResponse->getErrorCodes(), $validationErrors), $initialResponse->getHostname(), $initialResponse->getChallengeTs(), $initialResponse->getApkPackageName(), $initialResponse->getScore(), $initialResponse->getAction() ); } /** * Provide a hostname to match against in verify() * This should be without a protocol or trailing slash, e.g. www.google.com * * @param string $hostname Expected hostname * @return ReCaptcha Current instance for fluent interface */ public function setExpectedHostname($hostname) { $this->hostname = $hostname; return $this; } /** * Provide an APK package name to match against in verify() * * @param string $apkPackageName Expected APK package name * @return ReCaptcha Current instance for fluent interface */ public function setExpectedApkPackageName($apkPackageName) { $this->apkPackageName = $apkPackageName; return $this; } /** * Provide an action to match against in verify() * This should be set per page. * * @param string $action Expected action * @return ReCaptcha Current instance for fluent interface */ public function setExpectedAction($action) { $this->action = $action; return $this; } /** * Provide a threshold to meet or exceed in verify() * Threshold should be a float between 0 and 1 which will be tested as response >= threshold. * * @param float $threshold Expected threshold * @return ReCaptcha Current instance for fluent interface */ public function setScoreThreshold($threshold) { $this->threshold = floatval($threshold); return $this; } /** * Provide a timeout in seconds to test against the challenge timestamp in verify() * * @param int $timeoutSeconds Expected hostname * @return ReCaptcha Current instance for fluent interface */ public function setChallengeTimeout($timeoutSeconds) { $this->timeoutSeconds = $timeoutSeconds; return $this; } } PK � �\��'� � LICENSEnu �[��� BSD 3-Clause License Copyright (c) 2019, Google Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. PK � �\EȿZW W app.yamlnu �[��� runtime: php env: flex skip_files: - tests runtime_config: document_root: examples PK � �\���$ README.mdnu �[��� PK � �\�t� � � L composer.jsonnu �[��� PK � �\ �9 u src/autoload.phpnu �[��� PK � �\f���� � �% src/ReCaptcha/Response.phpnu �[��� PK � �\Ͷ8�4 4 $ �= src/ReCaptcha/RequestMethod/Curl.phpnu �[��� PK � �\�L��4 4 & rH src/ReCaptcha/RequestMethod/Socket.phpnu �[��� PK � �\�-؋� � $ �U src/ReCaptcha/RequestMethod/Post.phpnu �[��� PK � �\���; ; * 3c src/ReCaptcha/RequestMethod/SocketPost.phpnu �[��� PK � �\�|`� � ( �s src/ReCaptcha/RequestMethod/CurlPost.phpnu �[��� PK � �\�� Z �� src/ReCaptcha/RequestMethod.phpnu �[��� PK � �\��� � # � src/ReCaptcha/RequestParameters.phpnu �[��� PK � �\�K~1�" �" � src/ReCaptcha/ReCaptcha.phpnu �[��� PK � �\��'� � � LICENSEnu �[��� PK � �\EȿZW W &� app.yamlnu �[��� PK � ��
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