X-Git-Url: https://git.toastfreeware.priv.at/toast/cookiecaptcha.git/blobdiff_plain/bdc5e0ca1fb8818da66cc9403cb65045a7a9db74..6207682c65e21b25ca3ca186c8944a2340da2cae:/MathCaptcha.php

diff --git a/MathCaptcha.php b/MathCaptcha.php
index e2a2a4e..772687a 100644
--- a/MathCaptcha.php
+++ b/MathCaptcha.php
@@ -4,56 +4,15 @@
  * Captcha class using simple sums and the math renderer
  * Not brilliant, but enough to dissuade casual spam bots
  *
- * @package MediaWiki
- * @subpackage Extensions
+ * @addtogroup Extensions
  * @author Rob Church <robchur@gmail.com>
  * @copyright © 2006 Rob Church
  * @licence GNU General Public Licence 2.0
  */
 
-if( defined( 'MEDIAWIKI' ) ) {
-
-	class MathCaptcha extends SimpleCaptcha {
-	
-		/** Validate a captcha response */
-		function keyMatch( $req, $info ) {
-			return (int)$req->getVal( 'wpCaptchaAnswer' ) == (int)$info['answer'];
-		}
-		
-		/** Produce a nice little form */
-		function getForm() {
-			list( $sum, $answer ) = $this->pickSum();
-			$index = $this->storeCaptcha( array( 'answer' => $answer ) );
-			
-			$form = '<table><tr><td>' . $this->fetchMath( $sum ) . '</td>';
-			$form .= '<td>' . wfInput( 'wpCaptchaAnswer', false, false, array( 'tabindex' => '1' ) ) . '</td></tr></table>';
-			$form .= wfHidden( 'wpCaptchaId', $index );
-			return $form;
-		}
-		
-		/** Pick a random sum */
-		function pickSum() {
-			$a = mt_rand( 0, 100 );
-			$b = mt_rand( 0, 10 );
-			$op = mt_rand( 0, 1 ) ? '+' : '-';
-			$sum = "{$a} {$op} {$b} = ";
-			$ans = $op == '+' ? ( $a + $b ) : ( $a - $b );
-			return array( $sum, $ans );
-		}
-		
-		/** Fetch the math */
-		function fetchMath( $sum ) {
-			$math = new MathRenderer( $sum );
-			$math->setOutputMode( MW_MATH_PNG );
-			$html = $math->render();
-			return preg_replace( '/alt=".*"/', '', $html );
-		}
-	
-	}
-	
-} else {
+if( !defined( 'MEDIAWIKI' ) ) {
 	echo( "This file is an extension to the MediaWiki software and cannot be used standalone.\n" );
 	die( 1 );
 }
+$wgAutoloadClasses['MathCaptcha'] = dirname( __FILE__ ) . '/MathCaptcha.class.php';
 
-?>
\ No newline at end of file