mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/ConfirmEdit
synced 2024-11-30 19:04:29 +00:00
282 lines
7.6 KiB
PHP
282 lines
7.6 KiB
PHP
<?php
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namespace MediaWiki\Extension\ConfirmEdit\ReCaptchaNoCaptcha;
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use ApiBase;
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use FormatJson;
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use MediaWiki\Auth\AuthenticationRequest;
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use MediaWiki\Extension\ConfirmEdit\Auth\CaptchaAuthenticationRequest;
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use MediaWiki\Extension\ConfirmEdit\Hooks;
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use MediaWiki\Extension\ConfirmEdit\SimpleCaptcha\SimpleCaptcha;
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use MediaWiki\Html\Html;
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use MediaWiki\Language\RawMessage;
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use MediaWiki\MediaWikiServices;
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use MediaWiki\Message\Message;
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use MediaWiki\Request\WebRequest;
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use MediaWiki\Status\Status;
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class ReCaptchaNoCaptcha extends SimpleCaptcha {
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/**
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* @var string used for renocaptcha-edit, renocaptcha-addurl, renocaptcha-badlogin, renocaptcha-createaccount,
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* renocaptcha-create, renocaptcha-sendemail via getMessage()
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*/
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protected static $messagePrefix = 'renocaptcha-';
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/** @var string|null */
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private $error = null;
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/**
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* Get the captcha form.
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* @param int $tabIndex
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* @return array
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*/
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public function getFormInformation( $tabIndex = 1 ) {
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global $wgReCaptchaSiteKey, $wgLang;
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$lang = htmlspecialchars( urlencode( $wgLang->getCode() ) );
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$output = Html::element( 'div', [
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'class' => [
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'g-recaptcha',
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'mw-confirmedit-captcha-fail' => (bool)$this->error,
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],
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'data-sitekey' => $wgReCaptchaSiteKey
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] );
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$htmlUrlencoded = htmlspecialchars( urlencode( $wgReCaptchaSiteKey ) );
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$output .= <<<HTML
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<noscript>
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<div>
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<div style="width: 302px; height: 422px; position: relative;">
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<div style="width: 302px; height: 422px; position: absolute;">
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<iframe
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src="https://www.recaptcha.net/recaptcha/api/fallback?k={$htmlUrlencoded}&hl={$lang}"
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frameborder="0" scrolling="no"
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style="width: 302px; height:422px; border-style: none;">
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</iframe>
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</div>
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</div>
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<div style="width: 300px; height: 60px; border-style: none;
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bottom: 12px; left: 25px; margin: 0px; padding: 0px; right: 25px;
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background: #f9f9f9; border: 1px solid #c1c1c1; border-radius: 3px;">
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<textarea id="g-recaptcha-response" name="g-recaptcha-response"
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class="g-recaptcha-response"
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style="width: 250px; height: 40px; border: 1px solid #c1c1c1;
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margin: 10px 25px; padding: 0px; resize: none;" >
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</textarea>
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</div>
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</div>
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</noscript>
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HTML;
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return [
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'html' => $output,
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'headitems' => [
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// Insert reCAPTCHA script, in display language, if available.
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// Language falls back to the browser's display language.
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// See https://developers.google.com/recaptcha/docs/faq
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"<script src=\"https://www.recaptcha.net/recaptcha/api.js?hl={$lang}\" async defer></script>"
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]
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];
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}
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/**
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* @return string[]
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*/
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public static function getCSPUrls() {
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return [ 'https://www.recaptcha.net/recaptcha/api.js' ];
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}
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/**
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* @param Status|array|string $info
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*/
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protected function logCheckError( $info ) {
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if ( $info instanceof Status ) {
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$errors = $info->getErrorsArray();
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$error = $errors[0][0];
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} elseif ( is_array( $info ) ) {
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$error = implode( ',', $info );
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} else {
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$error = $info;
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}
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wfDebugLog( 'captcha', 'Unable to validate response: ' . $error );
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}
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/**
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* @param WebRequest $request
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* @return array
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*/
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protected function getCaptchaParamsFromRequest( WebRequest $request ) {
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// ReCaptchaNoCaptcha combines captcha ID + solution into a single value
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// API is hardwired to return captchaWord, so use that if the standard isempty
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// "captchaWord" is sent as "captchaword" by visual editor
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$index = 'not used';
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$response = $request->getVal(
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'g-recaptcha-response',
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$request->getVal( 'captchaWord', $request->getVal( 'captchaword' ) )
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);
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return [ $index, $response ];
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}
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/**
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* Check, if the user solved the captcha.
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*
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* Based on reference implementation:
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* https://github.com/google/recaptcha#php
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*
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* @param mixed $_ Not used (ReCaptcha v2 puts index and solution in a single string)
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* @param string $word captcha solution
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* @return bool
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*/
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protected function passCaptcha( $_, $word ) {
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global $wgRequest, $wgReCaptchaSecretKey, $wgReCaptchaSendRemoteIP;
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$url = 'https://www.recaptcha.net/recaptcha/api/siteverify';
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// Build data to append to request
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$data = [
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'secret' => $wgReCaptchaSecretKey,
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'response' => $word,
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];
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if ( $wgReCaptchaSendRemoteIP ) {
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$data['remoteip'] = $wgRequest->getIP();
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}
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$url = wfAppendQuery( $url, $data );
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$request = MediaWikiServices::getInstance()->getHttpRequestFactory()
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->create( $url, [ 'method' => 'POST' ], __METHOD__ );
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$status = $request->execute();
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if ( !$status->isOK() ) {
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$this->error = 'http';
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$this->logCheckError( $status );
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return false;
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}
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$response = FormatJson::decode( $request->getContent(), true );
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if ( !$response ) {
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$this->error = 'json';
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$this->logCheckError( $this->error );
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return false;
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}
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if ( isset( $response['error-codes'] ) ) {
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$this->error = 'recaptcha-api';
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$this->logCheckError( $response['error-codes'] );
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return false;
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}
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return $response['success'];
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}
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/**
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* @param array &$resultArr
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*/
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protected function addCaptchaAPI( &$resultArr ) {
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$resultArr['captcha'] = $this->describeCaptchaType();
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$resultArr['captcha']['error'] = $this->error;
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}
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/**
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* @return array
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*/
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public function describeCaptchaType() {
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global $wgReCaptchaSiteKey;
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return [
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'type' => 'recaptchanocaptcha',
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'mime' => 'application/javascript',
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'key' => $wgReCaptchaSiteKey,
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];
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}
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/**
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* Show a message asking the user to enter a captcha on edit
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* The result will be treated as wiki text
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*
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* @param string $action Action being performed
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* @return Message
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*/
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public function getMessage( $action ) {
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$msg = parent::getMessage( $action );
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if ( $this->error ) {
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$msg = new RawMessage( '<div class="error">$1</div>', [ $msg ] );
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}
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return $msg;
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}
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/**
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* @param ApiBase $module
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* @param array &$params
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* @param int $flags
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* @return bool
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*/
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public function apiGetAllowedParams( ApiBase $module, &$params, $flags ) {
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if ( $flags && $this->isAPICaptchaModule( $module ) ) {
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$params['g-recaptcha-response'] = [
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ApiBase::PARAM_HELP_MSG => 'renocaptcha-apihelp-param-g-recaptcha-response',
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];
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}
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return true;
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}
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/**
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* @inheritDoc
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*/
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public function getError() {
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return $this->error;
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}
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/**
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* @inheritDoc
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*/
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public function storeCaptcha( $info ) {
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// ReCaptcha is stored by Google; the ID will be generated at that time as well, and
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// the one returned here won't be used. Just pretend this worked.
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return 'not used';
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}
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/**
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* @inheritDoc
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*/
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public function retrieveCaptcha( $index ) {
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// just pretend it worked
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return [ 'index' => $index ];
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}
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/**
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* @inheritDoc
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*/
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public function getCaptcha() {
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// ReCaptcha is handled by frontend code + an external provider; nothing to do here.
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return [];
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}
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/**
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* @return ReCaptchaNoCaptchaAuthenticationRequest
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*/
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public function createAuthenticationRequest() {
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return new ReCaptchaNoCaptchaAuthenticationRequest();
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}
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/**
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* @param array $requests
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* @param array $fieldInfo
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* @param array &$formDescriptor
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* @param string $action
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*/
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public function onAuthChangeFormFields(
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array $requests, array $fieldInfo, array &$formDescriptor, $action
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) {
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global $wgReCaptchaSiteKey;
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$req = AuthenticationRequest::getRequestByClass( $requests,
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CaptchaAuthenticationRequest::class, true );
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if ( !$req ) {
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return;
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}
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// ugly way to retrieve error information
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$captcha = Hooks::getInstance();
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$formDescriptor['captchaWord'] = [
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'class' => HTMLReCaptchaNoCaptchaField::class,
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'key' => $wgReCaptchaSiteKey,
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'error' => $captcha->getError(),
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] + $formDescriptor['captchaWord'];
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}
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}
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