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<?php
class ReCaptchaNoCaptcha extends SimpleCaptcha {
private $error = null;
/**
* Get the captcha form.
* @return string
*/
function getForm( OutputPage $out ) {
global $wgReCaptchaSiteKey;
// Insert reCAPTCHA script.
// See https://developers.google.com/recaptcha/docs/faq
$out->addHeadItem(
'g-recaptchascript',
'<script src="https://www.google.com/recaptcha/api.js" async defer></script>'
);
$output = Html::element( 'div', array(
'class' => array(
'g-recaptcha',
'mw-confirmedit-captcha-fail' => !!$this->error,
),
'data-sitekey' => $wgReCaptchaSiteKey
) );
$htmlUrlencoded = htmlspecialchars( urlencode( $wgReCaptchaSiteKey ) );
$output .= <<<HTML
<noscript>
<div style="width: 302px; height: 422px;">
<div style="width: 302px; height: 422px; position: relative;">
<div style="width: 302px; height: 422px; position: absolute;">
<iframe src="https://www.google.com/recaptcha/api/fallback?k={$htmlUrlencoded}"
frameborder="0" scrolling="no"
style="width: 302px; height:422px; border-style: none;">
</iframe>
</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>
</div>
</noscript>
HTML;
return $output;
}
protected function logCheckError( $info ) {
if ( $info instanceof Status ) {
$errors = $status->getErrorsArray();
$error = $errors[0][0];
} elseif ( is_array( $info ) ) {
$error = implode( ',', $info );
} else {
$error = $info;
}
wfDebugLog( 'captcha', 'Unable to validate response: ' . $error );
}
/**
* Check, if the user solved the captcha.
*
* Based on reference implementation:
* https://github.com/google/recaptcha#php
*
* @return boolean
*/
function passCaptcha() {
global $wgRequest, $wgReCaptchaSecretKey, $wgReCaptchaSendRemoteIP;
$url = 'https://www.google.com/recaptcha/api/siteverify';
// Build data to append to request
$data = array(
'secret' => $wgReCaptchaSecretKey,
'response' => $wgRequest->getVal( 'g-recaptcha-response' ),
);
if ( $wgReCaptchaSendRemoteIP ) {
$data['remoteip'] = $wgRequest->getIP();
}
$url = wfAppendQuery( $url, $data );
$request = MWHttpRequest::factory( $url, array( 'method' => 'GET' ) );
$status = $request->execute();
if ( !$status->isOK() ) {
$this->error = 'http';
$this->logStatusError( $status );
return false;
}
$response = FormatJson::decode( $request->getContent(), true );
if ( !$response ) {
$this->error = 'json';
$this->logStatusError( $this->error );
return false;
}
if ( isset( $response['error-codes'] ) ) {
$this->error = 'recaptcha-api';
$this->logCheckError( $response['error-codes'] );
return false;
}
return $response['success'];
}
function addCaptchaAPI( &$resultArr ) {
global $wgReCaptchaSiteKey;
$resultArr['captcha']['type'] = 'recaptchanocaptcha';
$resultArr['captcha']['mime'] = 'image/png';
$resultArr['captcha']['key'] = $wgReCaptchaSiteKey;
$resultArr['captcha']['error'] = $this->error;
}
/**
* Show a message asking the user to enter a captcha on edit
* The result will be treated as wiki text
*
* @param $action string Action being performed
* @return string Wikitext
*/
function getMessage( $action ) {
$name = 'renocaptcha-' . $action;
$msg = wfMessage( $name );
$text = $msg->isDisabled() ? wfMessage( 'renocaptcha-edit' )->text() : $msg->text();
if ( $this->error ) {
$text = '<div class="error">' . $text . '</div>';
}
return $text;
}
public function APIGetAllowedParams( &$module, &$params, $flags ) {
if ( $flags && $this->isAPICaptchaModule( $module ) ) {
$params['g-recaptcha-response'] = null;
}
return true;
}
public function APIGetParamDescription( &$module, &$desc ) {
if ( $this->isAPICaptchaModule( $module ) ) {
$desc['g-recaptcha-response'] = 'Field from the ReCaptcha widget';
}
return true;
}
}
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