Captcha

Hi!

I'm a new one here, few days ago some "Spammers" began to wrotte some comments in my WebSite, with a lot of links to other sites.
I work with the option that all comment needs the administrator agreement to be showed. Of course, the "Spammers" are not registered on my site.
Now, I want to improve with the Captcha module drom Drupal web site, but when I open the .zip folder, it is empty! No data inside?¿

Can you help me about it? Just I began to use Drupal few months ago and I'm not very "ducho" in this new world.

Tanks very much!

Manel

Hi.
Does anyone has a working version of image captcha for drupal 4.7.x? It shouldn't be that hard to backport 5.x but if someone already did this...
I'm using drupallite ([1], [2]) for a small site and added captcha to the contact form. No I wanted to add image captcha but drupallite is based of drupal 4.7.

thanks,

Stefan

CAPTCHA is a great way of preventing spam. Another method of spam prevention is using a web service that scans the content for spam-like content. One popular choice is Akismet. Dries has launched a new web service called Mollom. The thing that makes Mollom neat is that it presents a CAPTCHA when the published content is thought to be spam. Very neat service!

Hi Folks,
Yesterday I just found RobLoach here in Boston DrupalCon, and he told me that Soxofaan is here also, so...
Why don't we do a Captcha code sprint tomorrow?

cheers
Fabiano Sant'Ana

I have recently had to modify the send.module (tell a friend function) to do a form submit through AJAX. It was not an easy task but was somewhat helped along with the use of the ajaxform submit module.

The CAPTCHA module team has released CAPTCHA Version 3.0 and comes with the following features since 3.0 RC3...

Hello all,

Yesterday I added a new CAPTCHA type to CAPTCHA Pack: ASCII art CAPTCHA. In this CAPTCHA the user is challenged with something like this:

  888888ba              88888888b   888888ba    88888888b           
  88    `8b             88          88    `8b   88                  
 a88aaaa8P'  .d8888b.  a88aaaa     a88aaaa8P'  a88aaaa     dP    dP 
  88   `8b.  88ooood8   88          88          88         88    88 
  88     88  88.  ...   88          88          88         88.  .88 
  dP     dP  `88888P'   88888888P   dP          88888888P  `88888P' 

or this:

             __        __  ____   __  __  _____    ___  
  _ __ ___   \ \      / / |  _ \  \ \/ / |_   _|  / _ \ 
 | '_ ` _ \   \ \ /\ / /  | |_) |  \  /    | |   | (_) |
 | | | | | |   \ V  V /   |  _ <   /  \    | |    \__, |
 |_| |_| |_|    \_/\_/    |_| \_\ /_/\_\   |_|      /_/ 

More than 20 fonts are included (based on the font definitions from http://www.figlet.org/).
I expect this to be a hard one for the spam bots to solve.
Tell me what you think.

PS. It's currently only available in the development snapshot, not yet in the official release.
PS2. the CAPTCHA for submitting this story sucks, especially because I previewed it several times.

After going through the issue queue in its entirety, I conclude that there are just a few issues that we have to clear up before the final release of Captcha version 3.0 final...

To go along with the release of Captcha 3.0 final, I put together a small video tutorial on Captcha, Image Captcha and reCAPTCHA.

Crossposting here:
Hi Folks,
Last version from Captcha had an PHP 4 incompatibility.
Sorry to all problems it had gave to you folks, and I really suggest you to upgrade your php version (or ask your provider to do so).
PHP4 is deprecated.

I'm proud to say you we have a new Captcha version.
Besides the API, most of changes are user centric, we improved the help pages, improved the usability of module, and fixed some bugs.

And now, we need that you, our users, download, test it, find bugs, suggest improvements, and please say what you think of about our work...

Thanks,
Fabiano

I have some food for thought about the use of the word "captcha" in the Drupal captcha modules.

CAPTCHA is the abbreviation for "Completely Automated Turing Test To Tell Computers and Humans Apart". Because it is an abbreviation, it should be spelled "CAPTCHA", (with upper case). In the Drupal captcha module we use "captcha" and "Captcha", as if it would be normal words. Some relevant sites where they use "CAPTCHA": http://www.captcha.net/ (the offical CAPTCHA site), http://en.wikipedia.org/wiki/CAPTCHA .
Should we change in all the CAPTCHA modules the "captcha"s to "CAPTCHA"?

Hi all,

I was working for some time on a bunch of capcha challenges for use with the base Captcha module.
Today I finally imported them as the Captcha Pack module in Drupal's CVS and created a project page on drupal.org. Check out http://drupal.org/project/captcha_pack for more info about the available challenges.

Because Captcha v3 is still under development, I did not provide an official release of Captcha Pack. So if you want to try it out, you'll have to fire up your CVS client or wait until the CVS HEAD snapshot is available.

Feel free to test it and give feedback/submit issues.

Version 2.1 of the Drupal reCAPTCHA module has been released and includes a number of enhancements.

Update: Version 2.2 fixes some minor things.

Hi again folks,
I'm closing old posts from captcha, committing and reviewing patches when it applies.

Any help is welcome ;)

fabiano

cross posting here:
Hi folks,
I'm planning to put Captcha's v3 in code freeze with the release of Captcha 5.x.3.0, which should be released this Sunday.
If you have any feature that you really want to see implemented, please, submit a patch as soon as possible.

A just saw a webpage about the Craziest Captchas on the Web and thought it was pretty interesting. Some of these are pretty funny and unique. I particularly like the braille one.

When can we expect Captcha modules for some of these? ;-)

Yesterday, wundo released Captcha version 3.0 RC1, which is a complete redesign of the old 2.x branch.

Captcha 3.0 RC 1 features:

• Complete redesign of the entire module.
• Image Captcha and Text Captcha are now provided as contributed modules within the module itself. No reason to download any other modules to make captcha work.
• Well documented API, so you're able to create a captcha challenge yourself.
• Ability to add Captcha challenges to any Drupal form using a nice user interface.
• ... and much more.

As expected captcha does not play nice with page caching: the captcha system wants each form to have a different challenge. With the current implementation of captcha (and also my rewrite), when caching is enabled, each anonymous users gets the same challenge. Only the first user that requested the form will be able to successfully solve the captcha because the solution is in his session, all other users can't pass the captcha challenge.

From: http://news.zdnet.co.uk/security/0,1000000189,39287905,00.htm

A new Trojan horse that sends spam through Hotmail and Yahoo email accounts has antivirus companies worried that the commonly used "captcha" system, used to prove new members are real people, may have been compromised

...

The Trojan uses automatically generated accounts, suggesting that spammers have found a way to bypass the captcha systems

I was thinking about this idea to make captcha easier for normal (non spam) users.
What if the captcha module would also offer an option to to hide the captcha with client side javascript and solve the captcha with client side javascript? That way the captcha would be invisible (but still correctly solved on submission) for users with javascript enabled. It degrades gracefully for users without javascript enabled to the standard captcha. I guess it's possible to do it for the default math captcha. For the image based captcha's it is of course near impossible.

The basic premise to make this work is, of course, that spambots do not have a javascript interpreter. Otherwise it is just silly. I don't have an idea how advanced the spam bots are these days.

any thoughts on this?

The Future Direction of Captcha is a great discussion on where the captcha modules should go and how all the different capthca solutions should come into one.

Wundo and I created an IRC channel for Drupal Captcha, creatively at #Drupal-Captcha on Freenode. Having the ability to chat live through IRC might help us collaborate on the Captcha API together more effectively.

I added a Captcha handbook page. Feel free to edit it if I missed anything or got something wrong.

Perhaps rename this group to Captcha?