[pmwiki-users] Experimental captcha recipe

Patrick R. Michaud pmichaud at pobox.com
Mon May 7 15:14:36 CDT 2007


For those who are curious, I'm playing with an experimental
captcha recipe at 

    http://www.pmwiki.org/wiki/Test/Captcha

The recipe adds an (:input captcha:) form type, as well
as a {$Captcha} page variable.  These can be added to existing
edit forms or (coming soon) mail form recipes to help filter
bots.

For sites that don't have PHP image libraries available, the
{$Captcha} markup displays the challenge value as plain text
instead of an image.  It's also configurable, which means that
it will be possible to plug in other obscuration methods
if plain text or the captcha image generator I'm using aren't
sophisticated enough.

Comments, questions welcomed.

Pm



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