[TYPO3-dev] captcha for core

[Franz Koch]

Hi Masi,

>> yes, there has to be a abstraction layer in the service controller. 
>> Just have a look at lib/div for inspiration - there is already a 
>> captcha controller present.
> 
> Two questions:
> 
> Do you think it can be turned into a TYPO3 service?

sorry, I'm not familiar with the generation of services.

> And are there any extensions around that couple an external captcha code 
> with this controller?

as far as I know, unfortunately not. In my case I always used the 
default 'calculation question' captcha as it is more userfriendly in my 
eyes.

> Bonus question:
> 
> Are you talking about the TER version or the SVN version of lib/div?

TER: 
(http://typo3.org/extensions/repository/view/lib/0.1.0/info/class.tx_lib_captcha.php/);

I just noticed, that the captcha class is no controller - sorry for the 
wrong information - it's been a while since I had a look at that file 
itself and had it wrong in my mind. But in the class you see, that there 
are only 2 methods for communication with the calling object 
(createTest() and ok(), which should better be called isOk() or something).

You now might say - hmmm, looks a bit clean, not much configuration 
options - but as I see it, the methods don't need any further 
configuration. The label (plus label tag) of the captcha field f.e. is 
something that has to be handled by the form class calling the captcha 
service, and something like word length, colors etc. for graphical 
captchas is something the service object itself has to care about.
The only additional parameters given to the captcha service might be the 
$_POST data for the isOK() method and probably a 'prefix' for the 
captcha fieldname, which is handled a bit different in lib/div and 
therefore didn't have to be passed.

I'm not sure, but probably Elmar already has improved the captcha class 
for his new SPL and whatever driven framework 'cool' - but I haven't 
followed the development of that. Probably somebody should ask him.

Hope that helps.

--
Greetings,
Franz