Extension:VisualMathCaptcha

MediaWiki extensions manual - list

VisualMathCaptcha Release status: stable
Implementation	Special page
Description	Visual (image) and math captcha
Author(s)	CchantepTalk
Last version	1.0-SNAPSHOT
MediaWiki	1.11.x-1.16.0
License	No license specified
Download	here
Example	example 1, example 2
Parameters $wgVisualMathCaptchaItemMax, $wgVisualMathCaptchaItemNum, $wgVisualMathCaptchaOperators
Check usage (experimental)

VisualMathCaptcha extension gives your wiki a strong captcha with a math operation generated as image.

Installation

This extension requires you have GD module for PHP.

Download VisualMathExtension from here.

To install this extension, add the following to LocalSettings.php:

require_once( "$IP/extensions/VisualMathCaptcha/VisualMathCaptcha.setup.php" );

Configuration parameters

• $wgVisualMathCaptchaItemMax : [int] max value (included) for each number in operation ; Defaulted to 9.

• $wgVisualMathCaptchaItemNum : [int] count of number in generated operator; Defaulted to 2.

• $wgVisualMathCaptchaOperators : [array] operators allowed for generation; Defaulted to { '+', '-' }.

With other extensions

With ConfirmEdit

This captcha can be used instead of standard captcha of ConfirmEdit extension. To do so :

1. Open ConfirmEdit.php, in ConfirmEdit extension directory, and change $wgCaptchaClass value to VisualMathConfirmCaptcha.
2. Add following line in LocalSettings.php, after content copied from provided file LocalSettings.part :

  $wgAutoloadClasses['VisualMathConfirmCaptcha'] = "$IP/extensions/VisualMathCaptcha/VisualMathConfirmCaptcha.class.php";

With Lockdown extension

VisualMathCaptcha uses a special page: SpecialPage:VisualMathCaptcha.

Add in LocalSettings.php

$wgSpecialPageLockdown['VisualMathCaptcha'] = array('*');

With CorporateContact

• VisualMathCaptcha can be used with CorporateContact.