Localisation updates for core and extension messages from translatewiki.net

[toast/cookiecaptcha.git] / MathCaptcha.class.php

diff --git a/MathCaptcha.class.php b/MathCaptcha.class.php
index 9e3d891532753d1112a9b313b5e45456de06ccfc..650c37d6335c1e177c543e05eeb37d5d9310f9dd 100644 (file)
--- a/MathCaptcha.class.php
+++ b/MathCaptcha.class.php
@@ -22,7 +22,7 @@ class MathCaptcha extends SimpleCaptcha {
                $index = $this->storeCaptcha( array( 'answer' => $answer ) );
 
                $form = '<table><tr><td>' . $this->fetchMath( $sum ) . '</td>';
-               $form .= '<td>' . Xml::input( 'wpCaptchaWord', false, false, array( 'tabindex' => '1' ) ) . '</td></tr></table>';
+               $form .= '<td>' . Html::input( 'wpCaptchaWord', false, false, array( 'tabindex' => '1', 'required' ) ) . '</td></tr></table>';
                $form .= Html::hidden( 'wpCaptchaId', $index );
                return $form;
        }
@@ -39,7 +39,11 @@ class MathCaptcha extends SimpleCaptcha {
 
        /** Fetch the math */
        function fetchMath( $sum ) {
-               $math = new MathRenderer( $sum );
+               if( MWInit::classExists( 'MathRenderer' ) ){
+                       $math = new MathRenderer( $sum );
+               } else {
+                       throw new MWException( 'MathCaptcha requires the Math extension for MediaWiki versions 1.18 and above.' );
+               }
                $math->setOutputMode( MW_MATH_PNG );
                $html = $math->render();
                return preg_replace( '/alt=".*?"/', '', $html );