[pmwiki-users] PmWiki & Spambots Redux: Another Idea
George De Bruin
sndchaser at gmail.com
Fri Jan 18 20:48:55 CST 2008
I was over looking at a certain blog package when I found a plugin that
implements a different "captcha" idea (personally, I like thinking of
this as more of a "caughtya" idea...:):
(1) add another field to the edit form with a default value
(2) Hide the field using css
If the "hidden field" gets modified, it's most likely a bot, so reject
If, perchance someone comes in with a non-css enabled browser there are
two things that can be done: (a) place the field in a non-obvious place
so the user isn't likely to modify it, (b) make the default value
indicate that the field doesn't need to be changed.
I thought of one additional idea: psuedo-randomizing the default value
of the field. If the value is generated from a list of values (strings)
it's less likely that a bot will recognize the value.
Personally, this might be a more graceful concept to implement, and
others can easily handle in their legitimate scripts...
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