Re: [Jcaptcha-users] Using JCaptcha to embed an audio challenge for the visually impaired

[Nick K. <nk...@sw...>]

Thanks for the reply, Antoine.

 

Looking at the links you provided in the post, the first link declares a
DefaultManageableSoundCaptchaService, but never uses it.  The second link
shows the code for the audio output.  I tried to combine the two and create
a SoundCaptchaService object by using the following code:

 

  SoundCaptchaService scs = new DefaultManageableSoundCaptchaService();

              ByteArrayOutputStream soundOutputStream = new
ByteArrayOutputStream();

              String audio_captchaID =
CaptchaModuleConfigHelper.getId(request);

              AudioInputStream ais =
scs.getSoundChallengeForID(audio_captchaID);

              AudioSystem.write(ais, AudioFileFormat.Type.WAVE,
soundOutputStream);

              soundOutputStream.flush();

              soundOutputStream.close();

              soundOutputStream.toByteArray();

 

However, upon code execution, my debugger shows that the SoundCaptchaService
object is never created.  Can someone explain why?  The code I wrote makes
sense, but something is wrong with it.  Can someone also show me how I would
get the sound embedded on a page using struts?

 

I really appreciate your help in my situation.  I’m anxious to see how I can
fully implement this in the site.

 

Thanks,

Nick

 

From: jca...@li...
[mailto:jca...@li...] On Behalf Of Antoine
Véret
Sent: Thursday, January 31, 2008 3:20 PM
To: jca...@li...
Subject: Re: [Jcaptcha-users] Using JCaptcha to embed an audio challenge for
the visually impaired

 

Hi Nicholas

1) It is not needed, you should display by default the image captcha and
shows the audio captcha when requested

2) one good sample is the Grails JCaptcha plugin located here :
http://docs.codehaus.org/display/GRAILS/JCaptcha+Plugin.
http://plugins.grails.org/grails-jcaptcha/trunk/grails-app/services/Jcaptcha
Service.groovy

Cheers

On Jan 31, 2008 6:09 PM, Nick Knopf <nk...@sw...> wrote:

Hi, I'm a developer for a travel agency, and we use JCaptcha for struts to
validate human users, but we recently received a government issue that
claimed we needed to account for blind users.  I have a few questions for
you guys regarding the SoundCaptcha classes in JCaptcha.

 

1)  Can you have both an image captcha and a sound captcha on the same page?
I know you can't have them both use the same captcha ID, but can they both
exist on a page where you submit either one or the other?
2)  Are there any examples on the internet that show you how to embed a
SoundCaptcha object on a page?  I've been searching the JCaptcha page for a
while, searching google, and I can't find anything.  Could you guys explain
or give me a link on how to do this?

I would really appreciate if you helped me out... I have no other choice but
to ask you.  Thanks!

 

Nicholas Knopf

SwiftTrip.com

Applications Developer

 


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Antoine Véret