1.33.0/php/ReCaptchaNoCaptcha_8php_source.html

<?php


use MediaWiki\Auth\AuthenticationRequest;


class ReCaptchaNoCaptcha extends SimpleCaptcha {

    // used for renocaptcha-edit, renocaptcha-addurl, renocaptcha-badlogin, renocaptcha-createaccount,

    // renocaptcha-create, renocaptcha-sendemail via getMessage()

    protected static $messagePrefix = 'renocaptcha-';


    private $error = null;

    public function getFormInformation( $tabIndex = 1 ) {

        global $wgReCaptchaSiteKey, $wgLang;

        $lang = htmlspecialchars( urlencode( $wgLang->getCode() ) );


        $output = Html::element( 'div', [

            'class' => [

                'g-recaptcha',

                'mw-confirmedit-captcha-fail' => (bool)$this->error,

            ],

            'data-sitekey' => $wgReCaptchaSiteKey

        ] );

        $htmlUrlencoded = htmlspecialchars( urlencode( $wgReCaptchaSiteKey ) );

        $output .= <<<HTML

<noscript>

  <div>

    <div style="width: 302px; height: 422px; position: relative;">

      <div style="width: 302px; height: 422px; position: absolute;">

        <iframe src="https://www.google.com/recaptcha/api/fallback?k={$htmlUrlencoded}&hl={$lang}"

                frameborder="0" scrolling="no"

                style="width: 302px; height:422px; border-style: none;">

        </iframe>

      </div>

    </div>

    <div style="width: 300px; height: 60px; border-style: none;

                bottom: 12px; left: 25px; margin: 0px; padding: 0px; right: 25px;

                background: #f9f9f9; border: 1px solid #c1c1c1; border-radius: 3px;">

      <textarea id="g-recaptcha-response" name="g-recaptcha-response"

                class="g-recaptcha-response"

                style="width: 250px; height: 40px; border: 1px solid #c1c1c1;

                       margin: 10px 25px; padding: 0px; resize: none;" >

      </textarea>

    </div>

  </div>

</noscript>

HTML;

        return [

            'html' => $output,

            'headitems' => [

                // Insert reCAPTCHA script, in display language, if available.

                // Language falls back to the browser's display language.

                // See https://developers.google.com/recaptcha/docs/faq

                "<script src=\"https://www.google.com/recaptcha/api.js?hl={$lang}\" async defer></script>"

            ]

        ];

    }


    protected function logCheckError( $info ) {

        if ( $info instanceof Status ) {

            $errors = $info->getErrorsArray();

            $error = $errors[0][0];

        } elseif ( is_array( $info ) ) {

            $error = implode( ',', $info );

        } else {

            $error = $info;

        }


        wfDebugLog( 'captcha', 'Unable to validate response: ' . $error );

    }


    protected function getCaptchaParamsFromRequest( WebRequest $request ) {

        // ReCaptchaNoCaptcha combines captcha ID + solution into a single value

        // API is hardwired to return captchaWord, so use that if the standard isempty

        // "captchaWord" is sent as "captchaword" by visual editor

        $index = 'not used';

        $response = $request->getVal( 'g-recaptcha-response',

                        $request->getVal( 'captchaWord',

                            $request->getVal( 'captchaword' )

                        ) );

        return [ $index, $response ];

    }


    protected function passCaptcha( $_, $word ) {

        global $wgRequest, $wgReCaptchaSecretKey, $wgReCaptchaSendRemoteIP;


        $url = 'https://www.google.com/recaptcha/api/siteverify';

        // Build data to append to request

        $data = [

            'secret' => $wgReCaptchaSecretKey,

            'response' => $word,

        ];

        if ( $wgReCaptchaSendRemoteIP ) {

            $data['remoteip'] = $wgRequest->getIP();

        }

        $url = wfAppendQuery( $url, $data );

        $request = MWHttpRequest::factory( $url, [ 'method' => 'GET' ] );

        $status = $request->execute();

        if ( !$status->isOK() ) {

            $this->error = 'http';

            $this->logCheckError( $status );

            return false;

        }

        $response = FormatJson::decode( $request->getContent(), true );

        if ( !$response ) {

            $this->error = 'json';

            $this->logCheckError( $this->error );

            return false;

        }

        if ( isset( $response['error-codes'] ) ) {

            $this->error = 'recaptcha-api';

            $this->logCheckError( $response['error-codes'] );

            return false;

        }


        return $response['success'];

    }


    protected function addCaptchaAPI( &$resultArr ) {

        $resultArr['captcha'] = $this->describeCaptchaType();

        $resultArr['captcha']['error'] = $this->error;

    }


    public function describeCaptchaType() {

        global $wgReCaptchaSiteKey;

        return [

            'type' => 'recaptchanocaptcha',

            'mime' => 'image/png',

            'key' => $wgReCaptchaSiteKey,

        ];

    }


    public function getMessage( $action ) {

        $msg = parent::getMessage( $action );

        if ( $this->error ) {

            $msg = new RawMessage( '<div class="error">$1</div>', [ $msg ] );

        }

        return $msg;

    }


    public function apiGetAllowedParams( &$module, &$params, $flags ) {

        if ( $flags && $this->isAPICaptchaModule( $module ) ) {

            $params['g-recaptcha-response'] = [

                ApiBase::PARAM_HELP_MSG => 'renocaptcha-apihelp-param-g-recaptcha-response',

            ];

        }


        return true;

    }


    public function getError() {

        return $this->error;

    }


    public function storeCaptcha( $info ) {

        // ReCaptcha is stored by Google; the ID will be generated at that time as well, and

        // the one returned here won't be used. Just pretend this worked.

        return 'not used';

    }


    public function retrieveCaptcha( $index ) {

        // just pretend it worked

        return [ 'index' => $index ];

    }


    public function getCaptcha() {

        // ReCaptcha is handled by frontend code + an external provider; nothing to do here.

        return [];

    }


    public function getCaptchaInfo( $captchaData, $id ) {

        return wfMessage( 'renocaptcha-info' );

    }


    public function createAuthenticationRequest() {

        return new ReCaptchaNoCaptchaAuthenticationRequest();

    }


    public function onAuthChangeFormFields(

        array $requests, array $fieldInfo, array &$formDescriptor, $action

    ) {

        global $wgReCaptchaSiteKey;


        $req = AuthenticationRequest::getRequestByClass( $requests,

            CaptchaAuthenticationRequest::class, true );

        if ( !$req ) {

            return;

        }


        // ugly way to retrieve error information

        $captcha = ConfirmEditHooks::getInstance();


        $formDescriptor['captchaWord'] = [

            'class' => HTMLReCaptchaNoCaptchaField::class,

            'key' => $wgReCaptchaSiteKey,

            'error' => $captcha->getError(),

        ] + $formDescriptor['captchaWord'];

    }

}