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phpMyAdmin/vendor/google/recaptcha/src/ReCaptcha/ReCaptcha.php
vendored
Executable file
269
phpMyAdmin/vendor/google/recaptcha/src/ReCaptcha/ReCaptcha.php
vendored
Executable file
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<?php
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/**
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* This is a PHP library that handles calling reCAPTCHA.
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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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namespace ReCaptcha;
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/**
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* reCAPTCHA client.
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*/
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class ReCaptcha
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{
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/**
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* Version of this client library.
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* @const string
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*/
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const VERSION = 'php_1.2.4';
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/**
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* URL for reCAPTCHA siteverify API
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* @const string
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*/
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const SITE_VERIFY_URL = 'https://www.google.com/recaptcha/api/siteverify';
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/**
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* Invalid JSON received
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* @const string
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*/
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const E_INVALID_JSON = 'invalid-json';
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/**
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* Could not connect to service
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* @const string
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*/
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const E_CONNECTION_FAILED = 'connection-failed';
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/**
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* Did not receive a 200 from the service
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* @const string
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*/
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const E_BAD_RESPONSE = 'bad-response';
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/**
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* Not a success, but no error codes received!
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* @const string
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*/
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const E_UNKNOWN_ERROR = 'unknown-error';
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/**
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* ReCAPTCHA response not provided
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* @const string
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*/
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const E_MISSING_INPUT_RESPONSE = 'missing-input-response';
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/**
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* Expected hostname did not match
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* @const string
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*/
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const E_HOSTNAME_MISMATCH = 'hostname-mismatch';
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/**
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* Expected APK package name did not match
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* @const string
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*/
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const E_APK_PACKAGE_NAME_MISMATCH = 'apk_package_name-mismatch';
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/**
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* Expected action did not match
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* @const string
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*/
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const E_ACTION_MISMATCH = 'action-mismatch';
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/**
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* Score threshold not met
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* @const string
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*/
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const E_SCORE_THRESHOLD_NOT_MET = 'score-threshold-not-met';
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/**
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* Challenge timeout
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* @const string
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*/
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const E_CHALLENGE_TIMEOUT = 'challenge-timeout';
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/**
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* Shared secret for the site.
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* @var string
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*/
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private $secret;
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/**
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* Method used to communicate with service. Defaults to POST request.
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* @var RequestMethod
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*/
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private $requestMethod;
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/**
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* Create a configured instance to use the reCAPTCHA service.
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*
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* @param string $secret The shared key between your site and reCAPTCHA.
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* @param RequestMethod $requestMethod method used to send the request. Defaults to POST.
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* @throws \RuntimeException if $secret is invalid
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*/
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public function __construct($secret, RequestMethod $requestMethod = null)
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{
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if (empty($secret)) {
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throw new \RuntimeException('No secret provided');
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}
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if (!is_string($secret)) {
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throw new \RuntimeException('The provided secret must be a string');
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}
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$this->secret = $secret;
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$this->requestMethod = (is_null($requestMethod)) ? new RequestMethod\Post() : $requestMethod;
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}
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/**
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* Calls the reCAPTCHA siteverify API to verify whether the user passes
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* CAPTCHA test and additionally runs any specified additional checks
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*
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* @param string $response The user response token provided by reCAPTCHA, verifying the user on your site.
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* @param string $remoteIp The end user's IP address.
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* @return Response Response from the service.
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*/
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public function verify($response, $remoteIp = null)
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{
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// Discard empty solution submissions
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if (empty($response)) {
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$recaptchaResponse = new Response(false, array(self::E_MISSING_INPUT_RESPONSE));
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return $recaptchaResponse;
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}
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$params = new RequestParameters($this->secret, $response, $remoteIp, self::VERSION);
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$rawResponse = $this->requestMethod->submit($params);
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$initialResponse = Response::fromJson($rawResponse);
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$validationErrors = array();
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if (isset($this->hostname) && strcasecmp($this->hostname, $initialResponse->getHostname()) !== 0) {
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$validationErrors[] = self::E_HOSTNAME_MISMATCH;
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}
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if (isset($this->apkPackageName) && strcasecmp($this->apkPackageName, $initialResponse->getApkPackageName()) !== 0) {
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$validationErrors[] = self::E_APK_PACKAGE_NAME_MISMATCH;
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}
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if (isset($this->action) && strcasecmp($this->action, $initialResponse->getAction()) !== 0) {
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$validationErrors[] = self::E_ACTION_MISMATCH;
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}
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if (isset($this->threshold) && $this->threshold > $initialResponse->getScore()) {
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$validationErrors[] = self::E_SCORE_THRESHOLD_NOT_MET;
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}
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if (isset($this->timeoutSeconds)) {
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$challengeTs = strtotime($initialResponse->getChallengeTs());
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if ($challengeTs > 0 && time() - $challengeTs > $this->timeoutSeconds) {
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$validationErrors[] = self::E_CHALLENGE_TIMEOUT;
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}
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}
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if (empty($validationErrors)) {
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return $initialResponse;
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}
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return new Response(
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false,
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array_merge($initialResponse->getErrorCodes(), $validationErrors),
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$initialResponse->getHostname(),
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$initialResponse->getChallengeTs(),
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$initialResponse->getApkPackageName(),
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$initialResponse->getScore(),
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$initialResponse->getAction()
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);
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}
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/**
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* Provide a hostname to match against in verify()
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* This should be without a protocol or trailing slash, e.g. www.google.com
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*
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* @param string $hostname Expected hostname
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* @return ReCaptcha Current instance for fluent interface
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*/
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public function setExpectedHostname($hostname)
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{
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$this->hostname = $hostname;
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return $this;
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}
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/**
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* Provide an APK package name to match against in verify()
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*
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* @param string $apkPackageName Expected APK package name
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* @return ReCaptcha Current instance for fluent interface
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*/
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public function setExpectedApkPackageName($apkPackageName)
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{
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$this->apkPackageName = $apkPackageName;
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return $this;
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}
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/**
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* Provide an action to match against in verify()
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* This should be set per page.
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*
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* @param string $action Expected action
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* @return ReCaptcha Current instance for fluent interface
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*/
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public function setExpectedAction($action)
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{
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$this->action = $action;
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return $this;
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}
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/**
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* Provide a threshold to meet or exceed in verify()
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* Threshold should be a float between 0 and 1 which will be tested as response >= threshold.
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*
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* @param float $threshold Expected threshold
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* @return ReCaptcha Current instance for fluent interface
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*/
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public function setScoreThreshold($threshold)
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{
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$this->threshold = floatval($threshold);
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return $this;
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}
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/**
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* Provide a timeout in seconds to test against the challenge timestamp in verify()
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*
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* @param int $timeoutSeconds Expected hostname
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* @return ReCaptcha Current instance for fluent interface
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*/
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public function setChallengeTimeout($timeoutSeconds)
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{
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$this->timeoutSeconds = $timeoutSeconds;
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return $this;
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}
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}
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