[arch-dev-public] Adding some kind of Captcha to our Wiki
pierre at archlinux.de
Sat May 23 04:13:12 EDT 2009
as discussed here http://bbs.archlinux.org/viewtopic.php?pid=557394 some spam
bots seem to like our wiki.
I have developed a very simple but effective way to stop such bots. Of course
they could easily bypass it but as it is not used by anybody else the bot
programmers just don't know about it.
The idea is to set a cookie on each form which existence will be checked
before each form action. The cookie is set by an "image" which is included by
CSS. Until now there seems to be no bot which reads CSS definitions.
Those which use text browsers will see a text form in which they need to enter
a short hex code in order to submit anything. Anyone else wont even notice
that there is a captcha.
So, what do you think? Should I activate this plugin? The only thing I need to
do is translating some error mesages from German into English.
PS: Source code is at:
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