mediawiki-extensions-Confir.../QuestyCaptcha.class.php

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<?php
/**
* QuestyCaptcha class
*
* @file
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* @author Benjamin Lees <emufarmers@gmail.com>
* @ingroup Extensions
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*/
class QuestyCaptcha extends SimpleCaptcha {
/** Validate a captcha response */
function keyMatch( $answer, $info ) {
return strtolower( $answer ) == strtolower( $info['answer'] );
}
function addCaptchaAPI( &$resultArr ) {
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$captcha = $this->getCaptcha();
$index = $this->storeCaptcha( $captcha );
$resultArr['captcha']['type'] = 'question';
$resultArr['captcha']['mime'] = 'text/plain';
$resultArr['captcha']['id'] = $index;
$resultArr['captcha']['question'] = $captcha['question'];
}
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function getCaptcha() {
global $wgCaptchaQuestions;
return $wgCaptchaQuestions[mt_rand( 0, count( $wgCaptchaQuestions ) - 1 )]; // pick a question, any question
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}
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function getForm() {
$captcha = $this->getCaptcha();
if ( !$captcha ) {
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die( "No questions found; set some in LocalSettings.php using the format from QuestyCaptcha.php." );
}
$index = $this->storeCaptcha( $captcha );
return "<p><label for=\"wpCaptchaWord\">{$captcha['question']}</label> " .
Xml::element( 'input', array(
'name' => 'wpCaptchaWord',
'id' => 'wpCaptchaWord',
'tabindex' => 1 ) ) . // tab in before the edit textarea
"</p>\n" .
Xml::element( 'input', array(
'type' => 'hidden',
'name' => 'wpCaptchaId',
'id' => 'wpCaptchaId',
'value' => $index ) );
}
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function getMessage( $action ) {
$name = 'questycaptcha-' . $action;
$text = wfMsg( $name );
# Obtain a more tailored message, if possible, otherwise, fall back to
# the default for edits
return wfEmptyMsg( $name, $text ) ? wfMsg( 'questycaptcha-edit' ) : $text;
}
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function showHelp() {
global $wgOut;
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$wgOut->setPageTitle( wfMsg( 'captchahelp-title' ) );
$wgOut->addWikiText( wfMsg( 'questycaptchahelp-text' ) );
if ( $this->storage->cookiesNeeded() ) {
$wgOut->addWikiText( wfMsg( 'captchahelp-cookies-needed' ) );
}
}
}