CAPTCHA

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CAPTCHA related interest group.

LR's picture

Captcha doesn't work on my customized 6.14 drupal version

Hi,

I installed, activated and configured the CAPTCHA module. But when I post a new comment, no captcha appears.

I tried on a fresh installed drupal and it works without any problems.

Could you help me to find where the problem could be ?

Thank you for you help

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navaneeth_r's picture

Captcha doesnot work with Page cache

Hi

Drupal version: 5.3
Captcha module version: 5.x-3.1

The current version of Captcha doesnot work with Page cache enabled. This could be a big disadvantage in a large site with many pages. To resolve the same and cache the page content we could apply the below patch.

Refer patch at http://drupal.org/node/602226.

We could furthur enhance and work towards removing session for anonymous user entirely and cache the captcha along with the page cache, refersh it only when used. Any suggestions.

Thanks

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mlncn's picture

Hair-trigger spam filter is a usability issue

I have accepted the overzealous spam filtering on g.d.o (if you included a link, you MUST be a spammer!) under the theory that we should live with our own tools– if a brand new user has to put up with it, I should also until I make it better for everyone.

As of today, I'm done with that noble approach.

Your submission has triggered the installed spam filter and will not be accepted.

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adavis.co.uk's picture

Missing CAPTCHA image

Hi, I wonder if anyone can help me? I've just installed CAPTCHA (6.x-1.0-rc2) as one of my sites was being bombarded with new user registrations. I selected the image option, installed a font, and could see the example image in the admin panel. However, when I attempt to register as an anonymous user I can't see the image. Have a look http://www.capiro.co.uk/node/112

The image path is http://www.capiro.co.uk/image_captcha/1077246294 which I don't understand 'cos the directory doesn't exist! However, that is the same path as used in the admin pages where it works?

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navaneeth_r's picture

captcha module [version 5] leads to increase the query

We have News site with lots of hits per day. So we are decided to optimize the code for anonymous user. We logged the query list of all pages, then we confirmed that all pages are retrieved from performance cache except the node page. The same bunch of queries repeated twice in the node page. In our node page we have some custom blocks, node comments and captcha.
Then I take the following steps to find the cause.
Removed the block from the node page --- No improvement
Enabled the block to the node page and disabled the comment module ---- No improvement

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djuro-gdo's picture

How to implement captcha in a simple custom form?

Hello,

I use Drupal 6.10 and Xampp on windows sp3 for local testing purposes. Started with Drupal a few months ago.
I have seen Rob's video tutorial (btw. it is great) and did so in order to protect my custom html/php mailing form but it does not work. Drupal comment form and others work fine, no matter whether I put image, math or text. Only when I want to use it on my form: nothing happens.

I googled a lot without success, to find some code example because I'm not sure if drupal captcha is supposed to work on custom forms at all?

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andy inman's picture

Possible DoS vulnerability with image captcha

Hi people - I've posted this already on the main Drupal site - http://drupal.org/node/383426 - could somebody run similar tests and/or comment please?

This came about because one of my sites was seeing huge (20+) load averages from time to time, making the site next to useless. I also know from logs that more than once we have script attacks which are trying to create user accounts (and of course we also get the usual spam post attempts.) So, I'm guessing the two are related.

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shoaibnawaz-gdo's picture

Captcha: A Strange experience

Hi!

I am using CAPTCHA in my drupal site for shoutbox. It is a nice thing to shield shoutbox from spams attack. In my case the shoutbox is appearing in the block. There is strange behavior of CAPTCHA upon submitting wrong code that the whole site (targeted page with error message) opens recursively with in that block above the CAPTCHA enabled form. How can I deal with this issue.

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Manel's picture

Captcha exists?

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

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stborchert's picture

Image captcha for drupal 4.7.x

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

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robloach's picture

Dries Launches Mollom

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!

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soxofaan's picture

Drop the double vision feature of the image CAPTCHA?

Yes, it's useless/too difficult to explain to visitors
67% (6 votes)
No, it looks cool
22% (2 votes)
No opinion
11% (1 vote)
Total votes: 9
wundo's picture

Captcha in DrupalCon Code Sprint

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

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liquidcms's picture

How can CAPTCHA play nice with AJAX

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.

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robloach's picture

CAPTCHA Version 3.0

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

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soxofaan's picture

ASCII art CAPTCHA

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.

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robloach's picture

Captcha 3.0 Final Status

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...

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robloach's picture

Captcha Video Tutorial

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

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wundo's picture

Captcha 3.0 RC 3 Released

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.

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wundo's picture

Captcha 3.0 RC 2 Released

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

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