13 Mar
2009
13 Mar
'09
11:25 a.m.
why don't you try reCAPTCHA? http://recaptcha.net/resources.html
On Fri, Mar 13, 2009 at 11:56, Jerome Velociter <jerome(a)xwiki.com> wrote:
Vincent Massol wrote:
Well this can be made indep of the environment I think.
We could just pass an object with the data needed (the user captcha
response and whatever other data is required) and create an instance
of HttpServletRequest internally and pass it to jcaptcha.
What am I missing (I'm sure I'm missing something ;))?
The fact jcaptcha internally keeps a generated challenge response
alongside with the session for which it has been generated. It's the
SimpleImageCaptchaServlet itself that offers the image:
<servlet>
<servlet-name>jcaptcha</servlet-name>
<servlet-class>com.octo.captcha.servlet.image.SimpleImageCaptchaServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>jcaptcha</servlet-name>
<url-pattern>/jcaptcha.jpg</url-pattern>
</servlet-mapping>
So for portlet we would have to do that same work too. In the end we can
abstract everything from the environment, but I can't see an easy way of
doing it without writing a "SimpleImageCaptchaPortlet"
Jerome
On Mar 13, 2009, at 10:24 AM, Jerome Velociter
wrote:
> Vincent Massol wrote:
>> On Mar 13, 2009, at 8:36 AM, Jerome Velociter wrote:
>>
>>> Hello Devs,
>>>
>>> I'm starting to think about the integration of JCaptcha 2.0
>>> (
http://forge.octo.com/jcaptcha/confluence/display/general/Simple+Servlet+In…
> )
> that would deprecated our current Captcha plugin.
> I think we need it as a component, for example xwiki-captcha
>
> We can have a CaptchaedRequestValidator component interface that
> declares the following method :
>
> boolean validateCaptcha(HttpServletRequest request);
>
> which would be called from the register action, comment add action,
> etc.
> (anywhere a captcha is needed - we could even expose a velocity
> API if
> we need it)
>
> WDYT ?
Hmm. Is it possible not to have it not depend on any environment
(servlet or other) or not? ie internally use the Execution Context
and
any passed parameters. This is important since captcha could be used
in a variety of environments, be it portlets, servlets, maybe even
web
services although that would probably be done best with a token.
Hum, the portlet
integration will have to be written if we want it.
What
JCaptcha provides is a simple servlet integration, i.e:
String userCaptchaResponse = request.getParameter("jcaptcha");
boolean captchaPassed =
SimpleImageCaptchaServlet.validateResponse(request,
userCaptchaResponse);
Thanks
-Vincent
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So even if we make the xwiki-captcha component
API independent of any
environment, we'll have to write code that in the end is
environment-dependent in the component implementation.
We can have for example:
boolean validateCaptcha()
without any parameters and retrieve what we need in the EC, but
still we'll have to check what environment we are called from in the
implementation.
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devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs So if it can be made to use the EC it's best,
otherwise it should not
have request as parameter since any implementation can have the
Container object injected. If we prefer to pass a parameter (I'm
still
ambivalent about this, it would be better when used in non component
env for sure) then Container can be passed. Again that's if we cannot
make it indep of the env.
Just to be sure, the public API exposed by xwiki-captcha would be
generic and not tied to any captcha implementation right?
Yes (for now the method
above is all I have in mind for an API)
Jerome.